Powder Cores MPP / High Flux / High Flux Prime / Sendust / Power Flux / Ultra Flux / Special Shape Core / SMD Metal Core 东部电子材料有限公司

Transcription

1 Powder Cores MPP / High Flux / High Flux Prime / Sendust / Power Flux / Ultra Flux / Special Shape Core / SMD Metal Core 东部电子材料有限公司

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3 Introduction of our company. Since 1996, Dongbu has operated a powder production factory and a core production factory in Ansan, Korea. At the powder production factory, raw materials are weighed, melted and atomized to powders. The powders are pulverized to a desired particle distribution, heat-treated, and insulated. On the other hand, at the core production factory, the insulated powders are pressed to cores, stress-relieved, infiltrated and proceeded to the final coating and inspection. Through the factory operation we have set all the standard procedures up and it has led to the production of more consistent and more reliable products. We produce the magnetic core products of Moly-Permalloy Powder Cores (MPP), High Flux Powder Cores (HF), High Flux Prime Powder Cores (HF Prime), Ultra Flux Powder Cores (UF), Sendust Powder Cores (SDT), Power Flux Powder Cores (PF) which are made of metal alloy powders consisting of nickel, iron, aluminum, silicon, and molybdenum. Besides, new materials are possible at a customer s request. In addition to toroidal cores, special shape cores such as E cores, U cores, and Block cores are also available for the renewable energy market including the photovoltaic (PV) inverter market, and for the hybrid electric vehicle (HEV) and electric vehicle (EV) market. These products show the best performance in DC-superposition and core loss characteristics at high frequency and high current condition, which makes them quite suitable for a variety of power applications from simple chokes to sophisticated devices such as DC-DC converters and DC-AC inverters. It is our constant mission to try to meet customers needs in terms of quality, cost and delivery. In addition, we ll be the best, the only and the first in global magnetic powder core business by best practices based on six sigma methodology.

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5 Contents General Information Application 6 Core Identification 7 -Name Code of Materials and Color of Toroidal Cores -Apparent Inductance in 1,000 turns Breakdown Voltage and Coating Materials 8 -Tolerance of Apparent Inductance -Unit Pack Quantity Core Dimension Table 9 Winding Data 10 Single Layer Winding Capacity 11 Wire Table 13 Technical Information Magnetic Design Formula 16 Conversion Table 18 Permeability vs. Frequency 20 Normal Magnetizing Curves 22 Permeability vs. AC Flux Density 24 Permeability vs. DC Bias Curves 26 Core Loss vs Temperature 29 Factors of Permeability vs. DC Bias Fit Formula, Factors of Percentage Permeability 30 Typical Core Loss of MPP 32 Typical Core Loss of High Flux 34 Typical Core Loss of High Flux Prime 36 Typical Core Loss of Ultra Flux 38 Typical Core Loss of Power Flux 40 Typical Core Loss of Sendust 42 Temperature Stability 44 Symbol and Units 46 Glossary of Terms 47 Dimension and Reference Table Standard MPC (Magnetic Powder Core) Toroidal Series Special Core Data Special Height UP/Down Core Series 106 Special Sendust 90μ Core Series 107 Dongbu Special Shape Core Data 108 EE Core series 109 EQ Core series 110 Block Core series 111 UU Core series 112 Cylinder Core series 113 CPI Core Data CDR Series 116 DR Series 117 T Series 118

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7 1 General Information

8 Application MPP Cores Features High Resistivity Low Hysteresis and Eddy Current Loss Excellent Inductance Stability under High DC-Bias condition Excellent Temperature Stability Application Inductors for Q Low Loss Filter Circuits Loading Coils Transformers, Chokes and Inductors High Flux (Prime) Cores Features Excellent DC-Bias Characteristics High Bmax of 15,000 Gauss Compared to MPP or Ferrites Core Loss Significantly Lower than Iron Powder Cores Large Energy Storage Capacity In-line Noise Filters Application Switching Regulator Inductors Pulse Transformers, Fly-back Transformers, PFC Chokes Sendust Cores POWDER CORES Features Core Loss Lower than Iron Powder Cores Good DC-Bias Characteristics Low Core Loss / Good DC-Bias Power Flux Cores Application Switching Regulator Inductors In-line Noise Filters Pulse Transformers, Fly-back Transformers PFC Chokes Features Application Excellent DC-Bias Property Power choke for high current (over 50A) Good Temperature Stability Power inductor for energy storage (solar cell, wind energy) Core Loss Lower than Fe-Si Strip Cores Power output stage inductor Ultra Flux Cores Features Application Excellent Core Loss & DC-Bias characteristics Power choke for high current (over 50A) High Bmax of 14,000 Gauss Power inductor for energy storage (solar dell, wind energy.. etc) Excellent temperature stabillty Power inductor for miliatry & industries Basic Material Properties Core Material Permeability (μ) Flux Density(G) Perm. Vs. DC bias Core Loss Curie Temp. ( ) Temp. Stability Relative Cost MPP 26~ Better Lowest 450 Best High High Flux 26~ Best Low 500 Better Medium Sendust 26~ Good Medium 500 Good Low Power Flux 26~ Best Medium 500 Good Low Ultra Flux 26~ Best Medium 500 Good Medium 6 POWDER CORES

9 Core Identification Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer s special requirement, some cores are coated with parylene coating. A part number means core identification and it includes name code of materials, core outer diameter, apparent inductance code temperature stability code and inductance tolerance band code. Core identification for easy distinction is following as below. (example) MPC Toroidal Core Series M A Temperature stability : inductance temperature stability Inductance : apparent inductance (mh) factor for 1,000 turns Size : outer diameter of core before coating (1/100Inch) Material : material code (M: MPP, H: High Flux, S: Sendust, W: Power Flux, U: Ultra Flux) Normally, name code of materials, outer diameter of bare core, apparent inductance in 1,000 turns and inductance temperature stability are stamped on the outside of the core. But, for customer order, tolerance band of apparent inductance is marked in packing label. Name Code of Materials and Color of Toroidal Cores General Information Brand Name Material Core Color Material Code MPP Fe-Ni-Mo alloy powder Grey M High Flux Fe-Ni alloy powder Khaki H Sendust Fe-Si-Al alloy powder Black S Power Flux Fe-Si alloy powder Bluish Green W Ultra Flux Ni-Fe-Si-Al powder Sky Blue U Apparent Inductance in 1000 turns Apparent inductance is value in mh/1000 turns. (AL value is the inductance(nh) per turn squared.) 7

10 Breakdown Voltage and coating materials It means breakdown voltage of core and is as the below [Table 1] : [Table 1] Breakdown voltage Coating Material Guaranteed Breakdown Voltage UL Number Parylene coating 0.5kV (min.) - Epoxy coating 0.5kV (min.) UL94V-0 Tolerance of Apparent Inductance OD (1/100 inch) Tolerance POWDER CORES 014 ~ ~ ~ -15% ~ +15% -12% ~ +12% -8% ~ +8% 8 POWDER CORES

11 Core Dimension Table Window Area (cm 2 ) Cross Section Ae(cm 2 ) Magnetic Path Length (cm) Surface Area Ae(cm 2 ) After finish 40% winding factor Dimension(mm) OD(Max) x ID(Min) x HT(Max) Before Finish 40% winding factor x 1.78 x x 1.27 x x 2.24 x x 1.73 x x 2.36 x x 1.85 x x 2.79 x x 2.29 x x 2.67 x x 2.16 x x 2.67 x x 2.16 x x 3.96 x x 3.43 x x 4.78 x x 4.27 x x 4.78 x x 4.27 x x 5.08 x x 4.57 x x 6.35 x x 5.89 x x 7.62 x x 6.99 x x x x 9.53 x x 9.65 x x 9.02 x x x x x x x x x 8.38 General Information x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x

12 Winding Data POWDER CORES Core Size Window Area Wire Length / Turn Wound Dimension(unity) 100% (unity) 0% OD(max) HT(max) cm 2 Cir-Mils cm ft cm ft cm , , , , , , , , , , , , , , , , , , , , , ,206, ,484, ,014, ,871, ,525, ,550, ,550, ,818, ,818, in cm in A) Window Area = ID 2 2 B) Winding factor is the ratio of wire area to available window area 40% for toroids. 70~80% for rectangular windows C) 100% winding condition assumed 10 POWDER CORES

13 Single Layer Winding Capacity Core Size ID (mm) Wire No. Wire Dia (mm) Turns / Single layer General Information 11

14 Single Layer Winding Capacity Core Size POWDER CORES ID (mm) Wire No. Wire Dia (mm) Turns / Single layer POWDER CORES

15 Wire Table Wire Size Resistance Ohms/Foot Wire Area Current Capacity Amperes Circular Mils cm 2 (x10-3 ) (1) (2) , , , , , , , , , , , , , , General Information Based on maximum diameter of heavy film magnet wire with insulation (1) Based on 750 cir mil/amperes. (2) Based on 375 cir mil/amperes. Current capacity will vary according to the core geometry and wire size, and can range from 375 to 1000 circular mils per ampere. 13

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17 2 Technical Information

18 Magnetic Design Formula The inductance of a core and the number of turns can be calculated by using the following formula. Inductance of Wourd Cores Where L = Inductance (μh) μ = core permeability N = number of turns A = core cross section area (cm 2 ) = mean magnetic path length (cm) LN = inductance for N turns (μh) AL = nominal inductance(nh/n 2 ) Example) M040066A POWDER CORES N = 10 turns (our standard wound turns for M040066A) A = 0.100cm 2 (please see the page 79 ) l = 2.380cm (please see the page 79 ) LN = 66 x 10 2 x 10-3 = 6.60(μH) The relations of Permeability-Flux Density(B)-Magnetizing Force(H) (Ampere s Law) (Faraday s Law) Where H = magnetizing force (Oersteds) N = number of turns I = peak magnetizing current (A) = mean magnetic path length (cm) Bmax = maximum flux density (Gauss) Erms = voltage across coil (V) A = core cross section area (cm 2 ) f = frequency (Hz) μ = material permeability Ampere s Law : The law is the magnetic equivalent of Gauss s law. It relates the circulating magnetic field in a closed loop to the electric current passing through the loop Faraday s Law : The law that defines the relationship of the voltage induced across the winding of a core to the flux density within the core 16 POWDER CORES

19 Inductance calculation by Permeability vs. DC bias curves Specification Core : M040066A Applied current : 3A 1) inductance Calculation at 0A N = 10 turns (our standard wound turns for M040066A) A = 0.100cm 2 (please see the page 79 ) = 2.380cm (please see the page 79 ) LN = 66 x 10 2 x 10-3 = 6.60(μH) 2) Magnetizing force (H : Oe) is calculated by Ampere law to achieve the roll off 3) When the magnetizing force(h) is 15.8 Oe, yielding 85% of initial permeability. Therefore, the Inductance at 3A is Technical Information L(3A) = 6.6 x 0.85 = 5.6(μH) Core Loss The total core losses are made up of three main components : Hysteresis, eddy current and residual losses. Eddy current loss Residual loss Hysteresis loss Total loss factor Where Rac = effective resistance (Ohm) a = hysteresis loss coefficient c = residual loss coefficient e = eddy current loss coefficient μ = same as before mentioned L = inductance Bmax = maximum flux density f = frequency 17

20 Q Factor The Q factor is the ratio of reactance to the effective resistance and is often used as measure of performance. So, the Q factor represents the effect of electrical resistance. Where Q = quality factor ω = 2πf (Hz) L = inductance (H) Rdc = DC winding resistance (Ohm) Rac = resistance due to core losses (Ohm) Rd = resistance due to winding dielectric losses (Ohm) Physical Constant of Core POWDER CORES Le = effective mean magnetic path length (cm) Ae = effective core cross section area (cm 2 ) Ve = effective core volume (cm 3 ) OD = core outer diameter (cm) ID = core inner diamete (cm) HT = core height (cm) Conversion Table CGS (unit) By To obtain (unit) Factor Magnetic Flux Density (B) Gauss (G) 10-4 Tesla (T) 1T=10 4 G Magnetizing Force (H) Oersted (Oe) Amperes per Meter (A/m) 1A/m=4π/10 3 Oe 18 POWDER CORES

21 Temperature Rising Calculation The increase in surface temperature of a component in free-standing air due to the total power dissipation (both copper and core loss). The following formula has been used to approximate temperature rise: Total Power Loss = Copper Loss + Core Loss Surface Area means in case of wound core Temperature Rising Calculation Nominal DC Resistance, in ohm/mh, at any given winding factor can be calculated by using the following equations: Where Ω/mhwf = Ω mh for chosen winding factor Ω/mhu = unity value, listed for each core size wf = chosen winding factor Kwf = length/turn for chosen wf * Ku = length/turn for unity(100%) wf * see winding Turn Length on core size pages Technical Information The value of Rdc for any given winding factor can be computed as follows: Where Rdcwf = Rdc for chosen winding factor Rdcu = unity value, listed for each core size(ohms) wf = chosen winding factor Kwf = length/turn for chosen wf* Ku = length/turn for unity(100%) wf* see winding Turn Length on core size pages 19

22 Permeability vs. Frequency MPP Percent Permeability(%) μ 60μ 125 μ POWDER CORES Frequency (khz) High Flux 100 Percent Permeability(%) μ 60μ 125 μ Frequency (khz) 20 POWDER CORES

23 Power Flux μ Percent Permeability(%) Frequency (khz) Sendust Technical Information μ Percent Permeability(%) μ 60μ 75μ 90μ 125 μ Frequency (khz) 21

24 Normal Magnetizing Curves MPP μ 60μ 26μ Flux Density (Gauss) POWDER CORES Magnetizing Force (Oersteds) High Flux Flux Density (Gauss) μ 60μ 26μ Magnetizing Force (Oersteds) 22 POWDER CORES

25 Power Flux Flux Density (Gauss) Flux Density (Gauss) Sendust Magnetizing Force (Oersteds) 125 μ 60μ 90μ 75μ 60μ 26μ Technical Information Magnetizing Force (Oersteds) 23

26 Permeability vs. AC Flux Density MPP 4 Percent Change of Permeability (%) μ 60μ 26μ POWDER CORES AC Flux Density (Gauss) High Flux Percent Change of Permeability (%) μ 60μ 26μ AC Flux Density (Gauss) 24 POWDER CORES

27 Power Flux 4 Percent Change of Permeability (%) μ AC Flux Density (Gauss) Sendust Technical Information μ Percent Change of Permeability (%) μ 75μ 60μ 26μ AC Flux Density (Gauss) 25

28 Permeability vs. DC Bias Curves MPP Percent Permeability (%) μ 60μ 26μ 20 POWDER CORES DC Mangnetizing Force (Oe) High Flux Percent Permeability (%) μ 60μ 26μ DC Mangnetizing Force (Oe) 26 POWDER CORES

29 High Flux Prime Percent Permeability (%) μ 60μ 26μ DC Mangnetizing Force (Oe) Ultra Flux Technical Information Percent Permeability (%) μ 90μ 60μ 26μ DC Mangnetizing Force (Oe) 27

30 Permeability vs. DC Bias Curves Power Flux Percent Permeability (%) μ 50μ 40μ 26μ 20 POWDER CORES DC Mangnetizing Force (Oe) Sendust Percent Permeability (%) μ 90μ 75μ 60μ 40μ 26μ DC Mangnetizing Force (Oe) 28 POWDER CORES

31 Core Loss vs Temperature SDT Percent (%) UF HF MPP PF Temperature ( ) Technical Information 29

32 Factors of Permeability vs. DC Bias Fit Formula, Factors of Percentage Permeability % Permeability = 100 (1 + a x H b ) POWDER CORES MPP Permeability a b E E E High Flux Permeability a b E E E POWDER CORES

33 Ultra Flux Permeability a b E E E E Power Flux Permeability a b E E E E E Technical Information Sendust Permeability a b E E E E E

34 Typical Core Loss of MPP MPP 26μ 1000 Core Loss (mw/cm 3 ) KHz 100KHz 50KHz 25KHz 1 POWDER CORES Flux Density (Gauss) Perm. C a b POWDER CORES

35 10000 MPP 60μ 1000 Core Loss (mw/cm 3 ) KHz 100KHz 50KHz 25KHz Flux Density (Gauss) MPP 125μ Technical Information Core Loss (mw/cm 3 ) KHz 100KHz 50KHz 25KHz Flux Density (Gauss) Perm. C a b

36 Typical Core Loss of High Flux HIgh Flux 26μ 1000 Core Loss (mw/cm 3 ) KHz 100KHz 50KHz 25KHz 1 POWDER CORES Flux Density (Gauss) Perm. C a b POWDER CORES

37 10000 HIgh Flux 60μ 1000 Core Loss (mw/cm 3 ) KHz 100KHz 50KHz 25KHz Flux Density (Gauss) HIgh Flux 125μ Technical Information Core Loss (mw/cm 3 ) KHz 100KHz 50KHz 25KHz Flux Density (Gauss) Perm. C a b

38 Typical Core Loss of High Flux Prime High Flux Prime 26μ 1000 Core Loss (mw/cm 3 ) KHz 100KHz 50KHz 25KHz 1 POWDER CORES Flux Density (Gauss) Perm. C a b POWDER CORES

39 10000 High Flux Prime 60μ 1000 Core Loss (mw/cm 3 ) KHz 100KHz 50KHz 25KHz Flux Density (Gauss) High Flux Prime 125μ Technical Information Core Loss (mw/cm 3 ) KHz 100KHz 50KHz 25KHz Flux Density (Gauss) Perm. C a b

40 Typical Core Loss of Ultra Flux Ultra Flux 26μ 1000 Core Loss (mw/cm 3 ) KHz 100KHz 50KHz 25KHz 1 POWDER CORES P L =4.51F 1.25 B Flux Density (Gauss) Perm. C a b POWDER CORES

41 10000 Ultra Flux 60μ 1000 Core Loss (mw/cm 3 ) KHz 100KHz 50KHz 25KHz 1 P L =4.51F 1.25 B Flux Density (Gauss) Ultra Flux 90μ, 125μ Technical Information Core Loss (mw/cm 3 ) KHz 100KHz 50KHz 25KHz Flux Density (Gauss) Perm. C a b

42 Typical Core Loss of Power Flux Power Flux 26μ 1000 Core Loss (mw/cm 3 ) KHz 100KHz 50KHz 25KHz 1 POWDER CORES Flux Density (Gauss) Power Flux 40μ Core Loss (mw/cm 3 ) KHz 100KHz 50KHz 25KHz Flux Density (Gauss) Perm. C a b POWDER CORES

43 10000 Power Flux 50μ 1000 Core Loss (mw/cm 3 ) KHz 100KHz 50KHz 25KHz Flux Density (Gauss) Power Flux 60μ Technical Information Core Loss (mw/cm 3 ) KHz 100KHz 50KHz 25KHz 1 P L =2.00F 1.31 B Flux Density (Gauss) Perm. C a b

44 Typical Core Loss of Sendust Sendust 26μ 1000 Core Loss (mw/cm 3 ) KHz 100KHz 50KHz 25KHz 1 POWDER CORES Flux Density (Gauss) Perm. C a b POWDER CORES

45 10000 Sendust 40μ 1000 Core Loss (mw/cm 3 ) KHz 100KHz 50KHz 25KHz Flux Density (Gauss) Sendust 60,75,90,125μ Technical Information Core Loss (mw/cm 3 ) KHz 100KHz 50KHz 25KHz Flux Density (Gauss) Perm. C a b

46 Temperature Stability MPP 3.0 Percent Permeability (%) μ 60μ 26μ -1.0 POWDER CORES High Flux Temperature ( ) Percent Permeability (%) μ 60μ 26μ Temperature ( ) 44 POWDER CORES

47 Power Flux Percent Permeability (%) μ Temperature ( ) Sendust Technical Information Percent Permeability (%) μ 60μ 75μ 90μ μ Temperature ( ) 45

48 Symbol and Units Symbol Discription Unit Ae effective cross section area of a core cm 2 AL apparent inductance nh/n 2 B magnetic flux density T Br remanence flux density T Bmax maximum flux density T Erms sinusoidal rms voltage across winding V H magnetizing force A/m POWDER CORES Hc coercive force A/m Hmax maximum magnetizing force A/m le effective magnetic path length cm L inductance H N number of turns - PL core loss of a core mw/cm 3 Q quality factor - V volume of a core cm 3 Rdc DC winding resistance Ω μ absolute permeability - μe effective permeability - μi initial permeability - μr relative permeability - 46 POWDER CORES

49 Glossary of Terms AC flux density Number of flux lines per unit of cross-sectional area generated by an alternating magnetic field; Gauss Air Gap A non-magnetic discontinuity in a ferro-magnetic circuit. For example, the space between the poles of a magnet, although filled with brass of wood and other non-magnetic material, is nevertheless called an air gap. Core Losses Core losses are caused by an altering magnetic field in the core material. The losses are a function of the operating frequency and the total magnetic flux swing. The total core losses are made up of three main components: Hysteresis, eddy current and residual losses. These losses vary considerably from one magnetic material to another. Applications such as higher power and higher frequency switching regulators require careful core selection to yield the highest inductor performance by keeping the core losses to a minimum. Breakdown Voltage (1)The voltage at which an insulator or dielectric ruptures, or at which ionization and conduction take place in a gas or vapor. (2) The reverse voltage at which ava l a n che b reakdown occu rs i n a semiconductor. (3) Maximum AC or DC voltage that can be applied from the input to output (or chassis) of a converter without causing damage. Core Saturation The DC bias current flowing through an inductor which causes the inductance to drop by a specified amount from the initial zero DC bias inductance value. Common spec i f ied induc tance drop percentages include 10% for ferrite cores and 20% for iron powder cores in energy storage applications. Also referred to as saturation current. Technical Information Choke An inductor which is intended to filter, or 'choke', out unwanted signals. Copper Loss The power loss by current flowing through the winding. The power loss is equal to the square of the current multiplied by the resistance of the wire (i2xr). This power loss is transferred into heat. Core Losses The temperature at which a magnetic material loses its magnetic properties. The core's permeability typical ly increases dramat ical ly as the core temperature approaches the curie temperature, which causes the inductance to increase. The permeability drops to near unity at the curie temperature, which causes the inductance to drop dramatically. The curie point is the temperature at which the initial permeability (µi) has dropped to 10% of its value at room temperature. 47

50 Glossary of Terms DC Bias Eddy Current Losses POWDER CORES Direct current (DC) applied to the winding of a core in addition to any time-varying current. Inductance with DC bias is a common specification for powder cores. The inductance will 'roll off' gradually and predictably with increasing DC bias. DCR Direct Current Resistance - The resistance of the inductor winding measured with no alternating current. The DCR is most often minimized in the design of an inductor. The unit of measure is ohms and it is usually specified as a maximum rating Distributed Capacitance (1) In the construction of an inductor, each turn of wire or conductor acts as a capacitor plate. The combined effects of each turn can be presented as a single capacitance known as the distributed capacitance. The capacitance is in parallel with the inductor. This parallel combination will resonate at some frequency, which is called the self-resonant frequency (SRF). Lower distributed capacitance for a given inductance will result in a higher SRF and vice versa. (2) Capacitance that is not concentrated within a lumped capacitor, but spread over a circuit or group of components. Core losses associated with the electrical resistivity of the magnetic material and induced voltages within the material. Eddy currents are inversely proportional to material resistivity and proportional to the rate of change of flux density. Eddy current losses are present in both the magnetic core and windings of an inductor. Eddy currents in the winding, or conductor, contribute to two main types of losses: losses due to proximity effects and skin effects. As for the core losses, an electric field around the flux lines in the magnetic field is generated by alternating magnetic flux. This will result in eddy currents if the magnetic core material has electrical conductivity. Losses result from this phenomenon since the eddy currents flow in a plane that is perpendicular to the magnetic flux lines. Eddy current and hysteresis losses are the two major core loss factors. Eddy current loss becomes dominant in powder cores as the frequency increases. Effective Permeability For a magnetic circuit constructed with an air gap, or gaps, the permeability of a hypothetical homogeneous material that would provide the same reluctance, or net permeability. EMC Electromagnetic compatibility. The ability of an elect ronic device to operate in i ts intended environment without its performance being affected by EMI and without generating EMI that will affect other equipment. EMI Electro-Magnetic Interference - An unwanted electrical energy in any form. EMI is often used interchangeably with 'noise' and 'interference'. 48 POWDER CORES

51 Flux Density (B) The corresponding parameter for the induced magnetic field in an area perpendicular to the flux path. Flux density is determined by the field strength and permeability of the medium in which it is measured. Hysteresis Loop A closed curve obtained for a material by plotting corresponding values of flux density for the ordinate and magnetizing force for the abscissa when the material is passing through a complete cycle between definite limits of either magnetizing force or flux density. If the material is not driven into saturation it is said to be on a minor loop. Full Winding A winding for toroidal cores that will result in 45% of the core's inside diameter remaining. Remanence Flux Density Maximum Permeability Maximum Flux Density Intial Permeability Harmonics Energy at integral multiples of the frequency of the fundamental signal. Normally expressed as THD (Total Harmonic Distortion) but can be specified for harmonics of interest in either a percentage of or decibels below the power level of the fundamental frequency signal. Coercive Force Magnetizing Force Technical Information Hysteresis Loss Hysteresis means to lag behind. This is the tendency of a magnetic material to retain its magnetization. Hysteresis causes the graph of magnetic flux density versus magnetizing force (B-H curve) to form a loop rather than a line. The area of the loop represents the difference between energy stored and energy released per unit of volume of material per cycle. This difference is called the hysteresis loss. High Q filters A filter circuit (inductor and/or capacitor) that exhibits high Q. It is very frequency-sensitive and filters out or allows to pass, only those frequencies within a narrow band. 49

52 Glossary of Terms Impedance The total opposition offered by a component or circuit to the flow of alternating or varying current at a particular frequency, including both the AC and DC component.. Impedance is expressed in ohms and is similar to the actual resistance in a direct current circuit. In computations, impedance is handled as a complex ratio of voltage to current. The ohm is the unit of impedance. Impedance i s t ypi cally abbreviated as "z" or "Z". The frequency-invariant, real component of impedance is resistance. The f requency-var iant, imaginary component of impedance is reactance. The reciprocal of impedance is admittance. Magnetostriction The expansion and contraction of a magnetic material with changing magnetic flux density. The saturation magnetostriction coefficient has the symbols. It is change of length divided by original length (a dimensionless number) and is measured at the saturation flux density. Magnetostriction causes audible noise if the magnetostriction is sufficiently large and the applied field is AC and in the audible frequency range, e.g. 50 or 60 Hz. Mean Length Turn The average length of a single turn in the winding of the device. POWDER CORES Inductance Factor (AL) The inductance rating of a core in nanohenries per turn squared (nh/n2) based on a peak flux density of 10 gauss (1 mt) at a frequency of 10 khz. An AL value of 40 would produce 400µH of inductance for 100 turns and 40mH for 1000 turns. Oersted The unit of magnetizing force in cgs units. One Oersted equals a magneto-motive force of one Gilbert per centimeter of path length. 1 Oersted = A/m= A/cm Initial Permeability That value of permeability at a peak AC flux density of 10 gauss (1 mt). Percent Permeability (%) Represents the percent change in permeability from the initial value. Magnetic Energy The product of the flux density (B) and the (de) magnetizing force (H) in a magnetic circuit required to reach that flux density. Q factor The Q factor or quality factor is a measure of the "quality" of a resonant system. Resonant systems respond to frequencies close to their natural frequency much more strongly than they respond to other frequencies. The Q factor indicates the amount of resistance to resonance in a system. Systems with a high Q factor resonate with a greater amplitude (at the resonant frequency) than systems with a low Q factor. Damping decreases the Q factor. 50 POWDER CORES

53 Search Coil A coil inductor, usually of known area and number of turns, that is used with a fluxmeter to measure the change of flux linkage with the coil. Single-Layer Winding Swing A term used to describe how inductance responds to changes in cur rent. Example: A 2:1 swing corresponds to an inductor which exhibits 2 times more inductance at very low current than it does at its maximum rated current. This would also correspond to the core operating at 50% of initial permeability (also 50% saturation) at maximum current. A winding for a toroidal core which will result in the full utilization of the inside circumference of the core without the overlapping of turns. The thickness of insulation and tightness of winding will affect results. Surface Area The effective surface area of a typical wound core available to dissipate heat. Skin Effect Skin effect is the tendency for alternating current to flow near the surface of the conductor in lieu of flowing in a manner as to utilize the entire crosssectional area of tile conductor. The phenomenon causes the resistance of the conductor to increase. The magnetic field associated with the current in the conductor causes eddy currents near the center of the conductor which opposes the flow of the main current flow near the center of the conductor. The main current flow is forced further to the surface as the frequency of the alternating current increasing Switch Mode Power Supply A power conversion technique that involves breaking the input power into pulses at a high frequency by switching it on and off and re-combining these pulses at the output stage. Using this technique, an unregulated input voltage can be converted to one or more regulated output voltages at relatively high efficiencies. Switching Frequency The rate at which the DC input to a switching regulator is switched on and off. Technical Information Stored Energy The amount of energy stored, in microjoules (10-6 joules), is the product of one-half the inductance (L) in microhenries (10-6 Henries), times the current (I) squared in amperes. Temperature rise Change in temperature of a terminal from a no-load condition to full-current load. Also called T rise. (2) The increase in surface temperature of a component in air due to the power dissipation in the component. The power dissipation for an inductor includes both copper and core losses. 51

54 Glossary of Terms Temperature Coefficient A factor which describes the reversible change in a magnetic property with a change in temperature. The magnetic property spontaneously returns when the emperature is cycled to its original point. It usually is expressed as the percentage change per unit of temperature. Temperature Stabilization After manufacture, many types of soft and hard magnetic materials can be thermally cycled to make them less sensitive to subsequent temperature extremes. POWDER CORES Winding Factor The ratio of the total area of copper wire inside the center hole of a toroid to the window area of the toroid. Window Area The area in and around a magnetic core which can be used for the placement of windings. 52 POWDER CORES

55 Technical Information 53

56

57 3Dimension and Reference Table

58 MPP Cross Reference POWDER CORES Dongbu Arnold Mag-Inc CSC O.D I.D Height Inch mm Inch mm Inch mm Perm M014013A MP N/A CM M014026A MP CM M015007A MP N/A N/A M015017A MP N/A CM M015035A MP CM M018009A MP N/A N/A M018020A MP CM M018042A MP CM M025010A MP N/A M025024A MP CM M025050A MP CM M026011A MP CM M026026A MP CM M026054A MP CM M026021A MP CM M026050A MP CM M026103A MP CM M031011A MP CM M031025A MP CM M031052A MP CM M038011A MP CM M038025A MP CM M038053A MP CM M038014A MP CM M038032A MP CM M038066A MP CM M040014A MP CM M040032A MP CM M040066A MP CM M044011A MP CM M044026A MP CM M044053A MP CM M050012A MP CM M050027A MP CM M050056A MP CM M065015A MP CM M065035A MP CM M065072A MP CM M068019A MP CM M068043A MP CM M068089A MP CM M080014A MP CM M080032A MP CM M080068A MP CM M090019A MP CM M090043A MP CM M090090A MP CM M092022A MP CM POWDER CORES

59 Dongbu Arnold Mag-Inc CSC O.D I.D Height Inch mm Inch mm Inch mm Perm M092051A MP CM M092105A MP CM M106032A MP CM M106075A MP CM M106157A MP CM M130028A MP CM M130061A MP CM M130127A MP CM M135016A MP CM M135038A MP CM M135079A MP CM M141024A MP CM M141056A MP CM M141127A MP CM M157035A MP CM M157081A MP CM M157168A MP CM M184059A MP CM M184135A MP CM M184281A MP CM M184037A MP CM M184086A MP CM M184178A MP CM M200032A MP CM M200073A MP CM M200152A MP CM M225060A MP CM M225138A MP CM M225287A MP CM M225033A MP CM M225075A MP CM M225156A MP CM M244084A N/A CM M244193A N/A CM M244402A N/A CM M306030A MP CM M306068A MP CM M306142A MP CM M306037A MP CM M306085A MP CM M306178A MP CM M400021A MP N/A N/A M400040A MP N/A N/A M400092A MP N/A N/A M400025A MP CM M400047A MP CM M400112A MP CM Dimension and Reference Table 57

60 High Flux Cross Reference POWDER CORES Dongbu Arnold Mag-Inc CSC O.D I.D Height Inch mm Inch mm Inch mm Perm H014013A HF N/A CH H014026A HF N/A CH H015007A HF N/A N/A H015017A HF N/A CH H015035A HF N/A CH H018009A HF N/A N/A H018020A HF N/A CH H018042A HF N/A CH H025010A HF N/A H025024A HF CH H025050A HF CH H026011A HF CH H026026A HF CH H026054A HF CH H026021A HF CH H026050A HF CH H026103A HF CH H031011A HF CH H031025A HF CH H031052A HF CH H038011A HF CH H038025A HF CH H038053A HF CH H038014A HF CH H038032A HF CH H038066A HF CH H040014A HF CH H040032A HF CH H040066A HF CH H044011A HF CH H044026A HF CH H044053A HF CH H050012A HF CH H050027A HF CH H050056A HF CH H065015A HF CH H065035A HF CH H065072A HF CH H068019A HF CH H068043A HF CH H068089A HF CH H080014A HF CH H080032A HF CH H080068A HF CH H090019A HF CH H090043A HF CH H090090A HF CH H092022A HF CH POWDER CORES

61 Dongbu Arnold Mag-Inc CSC O.D I.D Height Inch mm Inch mm Inch mm Perm H092051A HF CH H092105A HF CH H106032A HF CH H106075A HF CH H106157A HF CH H130028A HF CH H130061A HF CH H130127A HF CH H135016A HF CH H135038A HF CH H135079A HF CH H141024A HF CH H141056A HF CH H141127A HF CH H157035A HF CH H157081A HF CH H157168A HF CH H184059A HF CH H184135A HF CH H184281A HF CH H184037A HF CH H184086A HF CH H184178A HF CH H200032A HF CH H200073A HF CH H200152A HF CH H225060A HF CH H225138A HF CH H225287A HF CH H225033A HF CH H225075A HF CH H225156A HF CH H244084A N/A CH H244193A N/A CH H244402A N/A CH H306030A HF CH H306068A HF CH H306142A HF CH H306037A HF CH H306085A HF CH H306178A HF CH H400021A HF N/A N/A H400040A HF N/A N/A H400092A HF N/A N/A H400025A HF CH H400047A HF CH H400112A HF CH Dimension and Reference Table 59

62 Sendust Cross Reference POWDER CORES Dongbu Arnold Mag-Inc CSC O.D I.D Height Inch mm Inch mm Inch mm Perm S014013A MS CS S014016A MS CS S014019A MS CS S014026A MS CS S015007A MS N/A N/A S015017A MS CS S015021A MS CS S015025A MS CS S015035A MS CS S018009A MS N/A N/A S018020A MS CS S018025A MS CS S018030A MS CS S018042A MS CS S025010A MS N/A N/A S025024A MS CS S025030A MS CS S025036A MS CS S025050A MS CS S026011A MS N/A N/A S026026A MS CS S026032A MS CS S026039A MS CS S026054A MS CS S026021A MS N/A N/A S026050A MS CS S026062A MS CS S026074A MS CS S026103A MS CS S031011A MS N/A N/A S031025A MS CS S031031A MS CS S031037A MS CS S031052A MS CS S038011A MS N/A N/A S038025A MS CS S038032A MS CS S038038A MS CS S038053A MS CS S038014A MS N/A N/A S038032A MS CS S038040A MS CS S038048A MS CS S038066A MS CS S040014A MS N/A N/A S040032A MS CS S040040A MS CS S040048A MS CS POWDER CORES

63 Dongbu Arnold Mag-Inc CSC O.D I.D Height Inch mm Inch mm Inch mm Perm S040066A MS CS S044011A MS N/A CS S044026A MS CS S044032A MS CS S044038A MS CS S044053A MS CS S050012A MS N/A CS S050027A MS CS S050034A MS CS S050040A MS CS S050056A MS CS S065015A MS N/A CS S065035A MS CS S065043A MS CS S065052A MS CS S065072A MS CS S068019A MS N/A CS S068043A MS CS S068053A MS CS S068064A MS CS S068089A MS CS S080014A MS N/A CS S080032A MS CS S080041A MS CS S080049A MS CS S080068A MS CS S090019A MS CS S090043A MS CS S090054A MS CS S090065A MS CS S090090A MS CS S092022A MS CS S092051A MS CS S092062A MS CS S092076A MS CS S092105A MS CS S106032A MS CS S106075A MS CS S106094A MS CS S106113A MS CS S106157A MS CS S130028A MS CS S130061A MS CS S130076A MS CS S130091A MS CS S130127A MS CS S135016A MS CS S135038A MS CS Dimension and Reference Table 61

64 Sendust Cross Reference POWDER CORES Dongbu Arnold Mag-Inc CSC O.D I.D Height Inch mm Inch mm Inch mm Perm S135047A MS CS S135057A MS CS S135079A MS CS S141024A MS CS S141056A MS CS S141070A MS CS S141084A MS CS S141127A MS CS S157035A MS CS S157081A MS CS S157101A MS CS S157121A MS CS S157168A MS CS S184059A MS CS S184135A MS CS S184169A MS CS S184202A MS CS S184281A MS CS S184037A MS CS S184086A MS CS S184107A MS CS S184128A MS CS S184178A MS CS S200032A MS CS S200073A MS CS S200091A MS CS S200109A MS CS S200152A MS CS S225060A MS CS S225138A MS CS S225172A MS CS S225207A MS CS S225287A MS CS S225033A MS CS S225075A MS CS S225094A MS CS S225112A MS CS S225156A MS CS S244084A N/A CS S244193A N/A CS S244241A N/A CS S244289A N/A CS S244402A N/A N/A CS S306030A MS CS S306068A MS CS S306085A MS N/A CS S306102A MS N/A CS S306142A MS N/A CS POWDER CORES

65 Dongbu Arnold Mag-Inc CSC O.D I.D Height Inch mm Inch mm Inch mm Perm S306037A MS CS S306085A MS CS S306107A MS N/A CS S306128A MS N/A CS S306178A MS CS S400021A MS N/A N/A S400040A MS N/A N/A S400054A N/A N/A N/A S400092A MS N/A N/A S400025A MS N/A N/A S400047A MS CS S400063A N/A N/A N/A S400112A MS CS Dimension and Reference Table 63

66 Power Flux Cross Reference POWDER CORES Dongbu Arnold Mag-Inc CSC O.D I.D Height Inch mm Inch mm Inch mm Perm W014011A N/A N/A N/A W014013A FS CK W014019A FS CK W015014A N/A N/A N/A W015017A FS CK W015025A FS CK W018017A N/A N/A N/A W018020A FS CK W018030A FS CK W025020A N/A N/A N/A W025024A FS CK W025036A FS CK W026022A N/A N/A N/A W026026A FS CK W026039A FS CK W026041A N/A N/A N/A W026050A FS CK W026074A FS CK W031021A N/A N/A N/A W031025A FS CK W031037A FS CK W038021A N/A N/A N/A W038025A FS CK W038038A FS CK W038026A N/A N/A N/A W038032A FS CK W038048A FS CK W040026A N/A N/A N/A W040032A FS CK W040048A FS CK W044021A N/A N/A N/A W044026A FS CK W044038A FS CK W050022A N/A N/A N/A W050027A FS CK W050040A FS CK W065029A N/A N/A N/A W065035A FS CK W065052A FS CK W068035A N/A N/A N/A W068043A FS CK W068064A FS CK W080026A N/A N/A N/A W080032A FS CK W080049A FS CK W090035A N/A N/A N/A W090043A FS CK W090065A FS CK POWDER CORES

67 Dongbu Arnold Mag-Inc CSC O.D I.D Height Inch mm Inch mm Inch mm Perm W092042A N/A N/A N/A W092051A FS CK W092076A FS CK W106062A N/A N/A N/A W106075A FS CK W106113A FS CK W130050A N/A N/A N/A W130061A FS CK W130091A FS CK W135031A N/A N/A N/A W135038A FS CK W135057A FS CK W141047A N/A N/A N/A W141056A FS CK W141084A FS CK W157067A N/A N/A N/A W157081A FS CK W157121A FS CK W184112A N/A N/A N/A W184135A FS CK W184202A FS CK W184070A N/A N/A N/A W184086A FS CK W184128A FS CK W200060A N/A N/A N/A W200073A FS CK W200109A FS CK W225115A N/A N/A N/A W225138A FS CK W225207A FS CK W225062A N/A N/A N/A W225075A FS CK W225112A FS CK W244045A N/A N/A N/A W244084A N/A N/A CK W244193A N/A N/A CK W244241A N/A N/A CK W244289A N/A N/A CK W306056A N/A N/A N/A W306068A FS CK W306102A FS N/A CK W306071A N/A N/A N/A W306085A FS CK W306128A FS N/A CK W400077A N/A N/A N/A W400092A FS N/A N/A W400090A N/A N/A N/A W400112A FS N/A CK Dimension and Reference Table 65

68 Ultra Flux Cross Reference POWDER CORES Dongbu Arnold Mag-Inc CSC O.D I.D Height Inch mm Inch mm Inch mm Perm U014013A OP N/A N/A U014026A OP N/A N/A U015007A OP N/A N/A U015017A OP N/A N/A U015035A OP N/A N/A U018009A OP N/A N/A U018020A OP N/A N/A U018042A OP N/A N/A U025010A OP N/A N/A U025024A OP N/A N/A U025050A OP N/A N/A U026011A OP N/A N/A U026026A OP N/A N/A U026054A OP N/A N/A U026021A OP N/A N/A U026050A OP N/A N/A U026103A OP N/A N/A U031011A OP N/A N/A U031025A OP N/A N/A U031052A OP N/A N/A U038011A OP N/A HS U038025A OP N/A HS U038053A OP N/A N/A U038014A OP N/A HS U038032A OP N/A HS U038066A OP N/A N/A U040014A OP N/A HS U040032A OP N/A HS U040066A OP N/A N/A U044011A OP N/A HS U044026A OP N/A HS U044053A OP N/A N/A U050012A OP N/A HS U050027A OP N/A HS U050056A OP N/A N/A U065015A OP N/A HS U065035A OP N/A HS U065072A OP N/A N/A U068019A OP N/A HS U068043A OP N/A HS U068089A OP N/A N/A U080014A OP N/A HS U080032A OP A7 HS U080068A OP N/A N/A U090019A OP N/A HS U090043A OP A7 HS U090090A OP N/A N/A U092022A OP N/A HS POWDER CORES

69 Dongbu Arnold Mag-Inc CSC O.D I.D Height Inch mm Inch mm Inch mm Perm U092051A OP A7 HS U092105A OP N/A N/A U106032A OP N/A HS U106075A OP A7 HS U106157A OP N/A N/A U130028A OP N/A HS U130061A OP A7 HS U130127A OP N/A N/A U135016A OP N/A HS U135038A OP N/A HS U135079A OP N/A N/A U141024A OP N/A HS U141056A OP N/A HS U141127A OP N/A N/A U157035A OP N/A HS U157081A OP N/A HS U157168A OP N/A N/A U184059A OP N/A HS U184135A OP N/A HS U184281A OP N/A N/A U184037A OP N/A HS U184086A OP N/A HS U184178A OP N/A N/A U200032A OP N/A HS U200073A OP N/A HS U200152A OP N/A N/A U225060A OP N/A HS U225138A OP N/A HS U225287A OP N/A N/A U225033A OP N/A HS U225075A OP N/A HS U225156A OP N/A N/A U244084A N/A N/A HS U244193A N/A N/A HS U244402A N/A N/A N/A U306030A OP N/A HS U306068A OP N/A HS U306142A OP N/A N/A U306037A OP N/A HS U306085A OP N/A HS U306178A OP N/A N/A U400021A OP N/A N/A U400040A OP N/A N/A U400092A OP N/A N/A U400025A OP N/A HS U400047A OP N/A HS U400112A OP N/A N/A Dimension and Reference Table 67

70

71 4Standard MPC Toroidal Series

72 (inch) (mm) 0.140" 0.070" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M014026A 0.070" W014011A M014013A H014013A S014013A W014013A U014013A S014016A H014019A S014019A W014019A U014019A M014026A H014026A S014026A - U014026A M014031A H014031A M014033A H014033A POWDER CORES Core Dimensions (after Finish) O.D.(max.) 4.19 mm in I.D.(min.) 1.27 mm in HT.(max.) 2.16 mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in AL value vs. DC Bias 40 AL (nh/n 2 ) H014026A U014026A M014026A S014026A NI(AT) H014013A U014013A W014013A M014013A S014013A 70 POWDER CORES

73 (inch) (mm) 0.155" 0.088" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M015035A 0.100" 26 7 M015007A H015007A W015014A M015017A H015017A S015017A W015017A U015017A S015021A H015025A S015025A W015025A U015025A M015035A H015035A S015035A - U015035A M015041A H015041A M015045A H015045A Core Dimensions (after Finish) O.D.(max.) 4.57 mm in I.D.(min.) 1.73 mm in HT.(max.) 3.18 mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in Standard MPC Toroidal Series AL value vs. DC Bias AL (nh/n 2 ) H015035A U015035A M015035A S015035A 10 5 H015017A U015017A W015017A M015017A S015017A NI(AT) 71

74 (inch) (mm) 0.183" 0.093" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M018042A 0.100" 26 9 M018009A H018009A S018009A W018009A U018009A W018017A M018020A H018020A S018020A W018020A U018020A S018025A H018030A S018030A W018030A U018030A M018042A H018042A S018042A - U018042A M018049A H018049A M018053A M018053A POWDER CORES Core Dimensions (after Finish) O.D.(max.) 5.28 mm in I.D.(min.) 1.85 mm in HT.(max.) 3.18 mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in AL value vs. DC Bias H018042A U018042A M018042A S018042A AL (nh/n 2 ) H018020A U018020A W018020A M018020A S018020A NI(AT) 72 POWDER CORES

75 (inch) (mm) 0.250" 0.110" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M025050A 0.110" M025010A H025010A S025010A W025010A U025010A W025020A M025024A H025024A S025024A W025024A U025024A S025030A H025036A S025036A W025036A U025036A M025050A H025050A S025050A - U025050A M025059A H025059A M025064A H025064A Core Dimensions (after Finish) O.D.(max.) 6.99 mm in I.D.(min.) 2.29 mm in HT.(max.) 3.43 mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in Standard MPC Toroidal Series AL value vs. DC Bias H025050A U025050A M025050A S025050A AL (nh/n 2 ) H025024A U025024A W025024A M025024A S025024A NI(AT) 73

76 (inch) (mm) 0.260" 0.105" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M026054A 0.100" M026011A H026011A S026011A W026011A U026011A W026022A M026026A H026026A S026026A W026026A U026026A S026032A H026039A S026039A W026039A U026039A M026054A H026054A S026054A - U026054A M026064A H026064A M026069A H026069A POWDER CORES Core Dimensions (after Finish) O.D.(max.) 7.24 mm in I.D.(min.) 2.16 mm in HT.(max.) 3.18 mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in AL value vs. DC Bias AL (nh/n 2 ) H026054A U026054A M026054A S026054A H026026A U026026A W026026A M026026A S026026A NI(AT) 74 POWDER CORES

77 (inch) (mm) 0.260" 0.105" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M026103A 0.188" M026021A H026021A S026021A W026021A U026021A W026041A M026050A H026050A S026050A W026050A U026050A S026062A H026074A S026074A W026074A U026074A M026103A H026103A S026103A - U026103A M026122A H026122A M026132A H026122A Core Dimensions (after Finish) O.D.(max.) 7.24mm in I.D.(min.) 2.16 mm in HT.(max.) 5.54 mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in Standard MPC Toroidal Series AL value vs. DC Bias AL (nh/n 2 ) H026103A U026103A M026103A S026103A H026050A U026050A W026050A M026050A S026050A NI(AT) 75

78 (inch) (mm) 0.310" 0.156" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M031052A 0.125" M031011A H031011A S031011A W031011A U031011A W031021A M031025A H031025A S031025A W031025A U031025A S031031A H031037A S031037A W031037A U031037A M031052A H031052A S031052A - U031052A M031062A H031062A M031066A H031066A POWDER CORES Core Dimensions (after Finish) O.D.(max.) 8.51 mm in I.D.(min.) 3.43 mm in HT.(max.) 3.81 mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in AL value vs. DC Bias AL (nh/n 2 ) H031052A U031052A M031052A S031052A H031025A U031025A W031025A M031025A S031025A NI(AT) 76 POWDER CORES

79 (inch) (mm) 0.380" 0.188" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M038053A 0.125" M038011A H038011A S038011A W038011A U038011A W038021A M038025A H038025A S038025A W038025A U038025A S038032A H038038A S038038A W038038A U038038A M038053A H038053A S038053A - U038053A M038063A H038063A M038068A H038068A Core Dimensions (after Finish) O.D.(max.) 10.29mm in I.D.(min.) 4.27 mm in HT.(max.) 3.81 mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in Standard MPC Toroidal Series AL value vs. DC Bias AL (nh/n 2 ) H038053A U038053A M038053A S038053A H038025A U038025A W038025A M038025A S038025A NI(AT) 77

80 (inch) (mm) 0.380" 0.188" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M038066A 0.156" M038014A H038014A S038014A W038014A U038014A W038026A M038032A H038032A S038032A W038032A U038032A S038040A H038048A S038048A W038048A U038048A M038066A H038066A S038066A - U038066A M038078A H038078A M038084A H038084A POWDER CORES Core Dimensions (after Finish) O.D.(max.) mm in I.D.(min.) 4.27 mm in HT.(max.) 4.60 mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in AL value vs. DC Bias AL (nh/n 2 ) H038066A U038066A M038066A S038066A H038032A U038032A W038032A M038032A S038032A NI(AT) 78 POWDER CORES

81 (inch) (mm) 0.400" 0.200" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M040066A 0.156" M040014A H040014A S040014A W040014A U040014A W040026A M040032A H040032A S040032A W040032A U040032A S040040A H040040A S040040A W040040A U040040A M040066A H040066A S040066A - U040066A M040078A H040078A M040084A H040084A Core Dimensions (after Finish) O.D.(max.) 10.80mm in I.D.(min.) 4.57 mm in HT.(max.) 4.60 mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in Standard MPC Toroidal Series AL value vs. DC Bias AL (nh/n 2 ) H040066A U040066A M040066A S040066A H040032A U040032A W040032A M040032A S040032A NI(AT) 79

82 (inch) (mm) 0.440" 0.250" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M044053A 0.156" M044011A H044011A S044011A W044011A U044011A W044021A M044026A H044026A S044026A W044026A U044026A S044032A H044038A S044038A W044038A U044038A M044053A H044053A S044053A - U044053A M044063A H044063A M044068A H044068A POWDER CORES Core Dimensions (after Finish) O.D.(max.) mm in I.D.(min.) 5.89 mm in HT.(max.) 4.72 mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in AL value vs. DC Bias AL (nh/n 2 ) H044053A U044053A M044053A S044053A H044026A U044026A W044026A M044026A S044026A NI(AT) 80 POWDER CORES

83 (inch) (mm) 0.500" 0.300" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M050056A 0.187" M050012A H050012A S050012A W050012A U050012A W050022A M050027A H050027A S050027A W050027A U050027A S050034A H050040A S050040A W050040A U050040A M050056A H050056A S050056A - U050056A M050067A H050067A M050072A H050072A Core Dimensions (after Finish) O.D.(max.) mm in I.D.(min.) 6.99 mm in HT.(max.) 5.51 mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in Standard MPC Toroidal Series AL value vs. DC Bias AL (nh/n 2 ) H050056A U050056A M050056A S050056A H050027A U050027A W050027A M050027A S050027A NI(AT) 81

84 (inch) (mm) 0.650" 0.400" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M065072A 0.250" M065015A H065015A S065015A W065015A U065015A W065029A M065035A H065035A S065035A W065035A U065035A S065043A H065052A S065052A W065052A U065052A M065072A H065072A S065072A - U065072A M065088A H065088A M065092A H065092A POWDER CORES Core Dimensions (after Finish) O.D.(max.) mm in I.D.(min.) 9.53 mm in HT.(max.) 7.11 mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in AL value vs. DC Bias AL (nh/n 2 ) H065072A U065072A M065072A S065072A H065035A U065035A W065035A M065035A S065035A NI(AT) 82 POWDER CORES

85 (inch) (mm) 0.680" 0.380" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M068089A 0.250" M068019A H068019A S068019A W068019A U068019A W068035A M068043A H068043A S068043A W068043A U068043A S068053A H068064A S068064A W068064A U068064A M068089A H068089A S068089A - U068089A M068105A H068105A M068114A H068114A Core Dimensions (after Finish) O.D.(max.) mm in I.D.(min.) 9.02 mm in HT.(max.) 7.11 mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in Standard MPC Toroidal Series AL value vs. DC Bias H068089A U068089A M068089A S068089A AL (nh/n 2 ) H068043A U068043A W068043A M068043A S068043A NI(AT) 83

86 (inch) (mm) 0.800" 0.500" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M080068A 0.250" M080014A H080014A S080014A W080014A U080014A W080026A M080032A H080032A S080032A W080032A U080032A S080041A H080049A S080049A W080049A U080049A M080068A H080068A S080068A - U080068A M080081A H080081A M080087A H080087A POWDER CORES Core Dimensions (after Finish) O.D.(max.) mm in I.D.(min.) mm in HT.(max.) 7.11 mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in AL value vs. DC Bias AL (nh/n 2 ) H080068A U080068A M080068A S080068A H080032A U080032A W080032A M080032A S080032A NI(AT) 84 POWDER CORES

87 (inch) (mm) 0.900" 0.550" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M090090A 0.300" M090019A H090019A S090019A W090019A U090019A W090035A M090043A H090043A S090043A W090043A U090043A S090054A H090065A S090065A W090065A U090065A M090090A H090090A S090090A - U090090A M090106A H090106A M090115A H090115A Core Dimensions (after Finish) O.D.(max.) mm in I.D.(min.) mm in HT.(max.) 8.38 mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in Standard MPC Toroidal Series AL value vs. DC Bias AL (nh/n 2 ) H090090A U090090A M090090A S090090A H090043A U090043A W090043A M090043A S090043A NI(AT) 85

88 (inch) (mm) 0.920" 0.567" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M092105A 0.350" M092022A H092022A S092022A W092022A U092022A W092042A M092051A H092051A S092051A W092051A U092051A S092063A H092076A S092076A W092076A U092076A M092105A H092105A S092105A - U092105A M092124A H092124A M092135A H092135A POWDER CORES Core Dimensions (after Finish) O.D.(max.) mm in I.D.(min.) mm in HT.(max.) 9.70 mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in AL value vs. DC Bias AL (nh/n 2 ) H092105A U092105A M092105A S092105A H092051A U092051A W092051A M092051A S092051A NI(AT) 86 POWDER CORES

89 (inch) (mm) 1.060" 0.580" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M106157A 0.440" M106032A H106032A S106032A W106032A U106032A W106062A M106075A H106075A S106075A W106075A U106075A S106094A H106113A S106113A W106113A U106113A M106157A H106157A S106157A - U106157A M106185A H106185A M106201A H106201A Core Dimensions (after Finish) O.D.(max.) mm in I.D.(min.) mm in HT.(max.) mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in Standard MPC Toroidal Series AL value vs. DC Bias AL (nh/n 2 ) H106157A U106157A M106157A S106157A H106075A U106075A W106075A M106075A S106075A NI(AT) 87

90 (inch) (mm) 1.300" 0.785" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M130127A 0.420" M130028A H130028A S130028A W130028A U130028A W130050A M130061A H130061A S130061A W130061A U130061A S130076A H130091A S130091A W130091A U130091A M130127A H130127A S130127A - U130127A M130150A H130150A M130163A H130163A POWDER CORES Core Dimensions (after Finish) O.D.(max.) mm in I.D.(min.) mm in HT.(max.) mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in AL value vs. DC Bias AL (nh/n 2 ) H130127A U130127A M130127A S130127A H130061A U130061A W130061A M130061A S130061A NI(AT) 88 POWDER CORES

91 (inch) (mm) 1.350" 0.580" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M135079A 0.440" M135016A H135016A S135016A W135016A U135016A W135031A M135038A H135038A S135038A W135038A U135038A S135047A H135057A S135057A W135057A U135057A M135079A H135079A S135079A - U135079A M135093A H135093A M135101A H135101A Core Dimensions (after Finish) O.D.(max.) mm in I.D.(min.) mm in HT.(max.) 9.83 mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in Standard MPC Toroidal Series AL value vs. DC Bias AL (nh/n 2 ) H135079A U135079A M135079A S135079A H135038A U135038A W135038A M135038A S135038A NI(AT) 89

92 (inch) (mm) 1.410" 0.880" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M141117A 0.412" M141024A H141024A S141024A W141024A U141024A W141047A M141056A H141056A S141056A W141056A U141056A S141070A H141084A S141084A W141084A U141084A M141117A H141117A S141117A - U141117A M141138A H141138A M141150A H141150A POWDER CORES Core Dimensions (after Finish) O.D.(max.) mm in I.D.(min.) mm in HT.(max.) mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in AL value vs. DC Bias AL (nh/n 2 ) H141117A U141117A M141117A S141117A H141056A U141056A W141056A M141056A S141056A NI(AT) 90 POWDER CORES

93 (inch) (mm) 1.570" 0.950" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M135079A 0.570" M157035A H157035A S157035A W157035A U157035A W157067A M157081A H157081A S157081A W157081A U157081A S157101A H157121A S157121A W157121A U157121A M157168A H157168A S157168A - U157168A M157198A H157198A M157215A H157215A Core Dimensions (after Finish) O.D.(max.) 40.72mm in I.D.(min.) mm in HT.(max.) mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in Standard MPC Toroidal Series AL value vs. DC Bias AL (nh/n 2 ) H157168A U157168A M157168A S157168A H157081A U157081A W157081A M157081A S157081A NI(AT) 91

94 (inch) (mm) 1.840" 0.950" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M184281A 0.710" M184059A H184059A S184059A W184059A U184059A W184112A M184135A H184135A S184135A W184135A U184135A S184169A H184202A S184202A W184202A U184202A M184281A H184281A S184281A - U184281A M184330A H184330A M184360A H184360A POWDER CORES Core Dimensions (after Finish) O.D.(max.) mm in I.D.(min.) mm in HT.(max.) mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in AL value vs. DC Bias AL (nh/n 2 ) H184281A U184281A M184281A S184281A H184135A U184135A W184135A M184135A S184135A NI(AT) 92 POWDER CORES

95 (inch) (mm) 1.840" 1.130" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M184178A 0.600" M184037A H184037A S184037A W184037A U184037A W184070A M184086A H184086A S184086A W184086A U184086A S184107A H184128A S184128A W184128A U184128A M184178A H184178A S184178A - U184178A M184210A H184210A M184228A H184228A Core Dimensions (after Finish) O.D.(max.) 47.63mm in I.D.(min.) mm in HT.(max.) mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in Standard MPC Toroidal Series AL value vs. DC Bias AL (nh/n 2 ) H184178A U184178A M184178A S184178A H184086A U184086A W184086A M184086A S184086A NI(AT) 93

96 (inch) (mm) 2.000" 12.50" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M200152A 0.530" M200032A H200032A S200032A W200032A U200032A W200060A M200073A H200073A S200073A W200073A U200073A S200091A H200109A S200109A W200109A U200109A M200152A H200152A S200152A - U200152A M200179A H200179A M200195A H200195A POWDER CORES Core Dimensions (after Finish) O.D.(max.) mm in I.D.(min.) mm in HT.(max.) mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in AL value vs. DC Bias AL (nh/n 2 ) H184281A U184281A M184281A S184281A H184135A U184135A W184135A M184135A S184135A NI(AT) 94 POWDER CORES

97 (inch) (mm) 2.250" 10.39" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M225287A 0.600" M225060A H225060A S225060A W225060A U225060A W225115A M225138A H225138A S225138A W225138A U225138A S225172A H225207A S225207A W225207A U225207A M225287A H225287A S225287A - U225287A M225306A H225306A M225333A H225333A Core Dimensions (after Finish) O.D.(max.) mm in I.D.(min.) mm in HT.(max.) mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in Standard MPC Toroidal Series AL value vs. DC Bias AL (nh/n 2 ) H225287A U225287A M225287A S225287A H225138A U225138A W225138A M225138A S225138A NI(AT) 95

98 (inch) (mm) 2.250" 14.00" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M225156A 0.550" M225033A H225033A S225033A W225033A U225033A W225062A M225075A H225075A S225075A W225075A U225075A S225094A H225112A S225112A W225112A U225112A M225156A H225156A S225156A - U225156A M225185A H225185A M225200A H225200A POWDER CORES Core Dimensions (after Finish) O.D.(max.) mm in I.D.(min.) mm in HT.(max.) mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in AL value vs. DC Bias AL (nh/n 2 ) H225156A U225156A M225156A S225156A H225075A U225075A W225075A M225075A S225075A NI(AT) 96 POWDER CORES

99 (inch) (mm) 2.441" 1.283" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M244402A 0.984" M244083A H244083A S244083A W244083A U244083A W244161A M244192A H244192A S244192A W244192A U244192A S244241A H244289A S244289A W244289A U244289A M244402A H244402A S244402A - U244402A Core Dimensions (after Finish) O.D.(max.) mm in I.D.(min.) mm in HT.(max.) mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in Standard MPC Toroidal Series AL value vs. DC Bias AL (nh/n 2 ) H244402A U244402A M244402A S244402A H244192A U244192A W244192A M244192A S244192A NI(AT) 97

100 (inch) (mm) 2.917" 1.783" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M292429A 1.378" M292089A H292089A S292089A W292089A U292089A W292171A M292204A H292204A S292204A W292204A U292204A S292257A H292309A S292309A W292309A U292309A M292429A H292429A S292429A - U292429A POWDER CORES Core Dimensions (after Finish) O.D.(max.) mm in I.D.(min.) mm in HT.(max.) mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm 7.24 in Volume cm in AL value vs. DC Bias AL (nh/n 2 ) H292429A U292429A M292429A S292429A H292429A U292429A M292429A S292429A NI(AT) 98 POWDER CORES

101 (inch) (mm) 3.063" 1.938" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M306142A 0.500" M306030A H306030A S306030A W306030A U306030A W306056A M306068A H306068A S306068A W306068A U306068A S306084A H306102A S306102A W306102A U306102A M306142A H306142A S306142A - U306142A Core Dimensions (after Finish) O.D.(max.) mm in I.D.(min.) mm in HT.(max.) mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in Standard MPC Toroidal Series AL value vs. DC Bias AL (nh/n 2 ) H306142A U306142A M306142A S306142A H306142A U306142A M306142A S306142A NI(AT) 99

102 (inch) (mm) 3.063" 1.938" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M306178A 0.625" M306037A H306037A S306037A W306037A U306037A W184112A M306085A H306085A S306085A W306085A U306085A S306107A H306128A S306128A W306128A U306128A M306178A H306178A S306178A - U306178A POWDER CORES Core Dimensions (after Finish) O.D.(max.) mm in I.D.(min.) mm in HT.(max.) mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in AL value vs. DC Bias AL (nh/n 2 ) H306178A U306178A M306178A S306178A H306085A U306085A W306085A M306085A S306085A NI(AT) 100 POWDER CORES

103 (inch) (mm) 4.000" 2.250" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M400092A 0.535" M400040A H400040A S400040A W400040A U400040A W400077A M400092A H400092A S400092A W400092A U400092A Core Dimensions (after Finish) O.D.(max.) mm in I.D.(min.) mm in HT.(max.) mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in Standard MPC Toroidal Series AL value vs. DC Bias AL (nh/n 2 ) H400092A U400092A W400092A M400092A S400092A NI(AT) 101

104 (inch) (mm) 4.000" 2.250" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux M400112A 0.650" M400047A H400047A S400047A W400047A U400047A W400090A M400112A H400112A S400112A W400112A U400112A POWDER CORES Core Dimensions (after Finish) O.D.(max.) mm in I.D.(min.) mm in HT.(max.) 17.8 mm in Physical Constant Window Area cm c.mils Cross Section Area cm in 2 Path Length cm in Volume cm in AL value vs. DC Bias AL (nh/n 2 ) H400112A U400112A W400112A M400112A S400112A NI(AT) 102 POWDER CORES

105 (inch) (mm) 5.218" 3.094" Core Information Perm. (μ) AL value (nh/n2) MPP High Flux Sendust Power Flux Ultra Flux 0.800" M522054A H522054A S522054A W522054A U522054A M522124A H522124A S522124A W522124A U522124A M522124A M522259A H522259A S522259A - U522259A Core Dimensions (after Finish) O.D.(max.) mm in I.D.(min.) mm in HT.(max.) mm in Physical Constant Window Area cm c.mils Cross Section Area 5.34 cm in 2 Path Length cm in Volume cm in N/A N/A Standard MPC Toroidal Series AL value vs. DC Bias H522259A U522259A M522259A S522259A AL (nh/n 2 ) H522124A U522124A W522124A M522124A S522124A NI(AT) 103

106

107 5 Special Core Data

108 Special Height Up/Down Core Series Introduction (3.56mm x 1.78mm x 1.52mm) 0.140" 0.070" POWDER CORES Increase H.T.(mm) 0.060" Decrease H.T.(mm) We, Dongbu can supply various special height core series depending on our customer request. Actually, a lot of customers would like to get increasing height cores or decreasing height cores in order to design their drawing. It is very useful in the case of replacing two pieces core by one cores which is the increasing height core. As increasing height, customer can get low-cost cores and also we can get much profit than common cores. If you need more information on it, please feel free to contact us. 106 POWDER CORES

109 Special Sendust 90μ Core Series OD ID HT Features 1. Low Core Losses 2. Excellent DC - Bias Characteristics 3. Excellent Frequency Characteristics 4. Low Price Permeability (μ) AL-Value (nh/n 2 ) Magnetic Path length (cm) Cross Section Area (cm 2 ) OD(max.) (mm) Core Dimension ID(min.) (mm) HT(max.) (mm) S041055A S054060A S070070A Special Core Data S082070A S082120A S084070A S109090A S109150A S136146A S136183A Above mentioned core dimensions are for nominal bare core before coating Cores are supplied with 0.04mm~0.06mm nominal epoxy coating. Finish coating material : Epoxy(UL94V-0), All core colors are black Inductance tolerance are 8% from nominal inductance In addition to cores listed above, customer specifications are also available 107

110 Dongbu Special Shape Core Data High Flux Sendust POWDER CORES Power Flux Special Shape Core Series Features 1. Large energy storage capacity 2. Low core losses at elevated frequency 3. Exellent DC-Bias inductance features 4. Good temperature stability Applications 1. Choke coils for large current 2. Flyback transformers 3. PFC reactors 4. High inductance choke coils 5.PV, UPS 6.EV, Telecom 108 POWDER CORES

111 EE Core series Identification of EE Core Series S C EE Core shape : EE means EE type cores Perm.(u) : permeability code(b:26, J:40, C:60, E:90) Inductance : apparent inductance [mh] factor for 1000turns Size : horizontal axis of cores [mm] Size : vertical axis of cores [mm] Material : material code(w, H, S, U) Where, S : Sendust Material [Fe / Al / Si] 43 : 43mm 21 : 21mm 150 : 150mH/N 2 at 1000turns Dimension specification of EE Core series [Fig.1] mechanical out lines [unit : mm] about EE core series B A F E C M Special Core Data L D [Table 2] shows out dimension specification of EE core series P/N 1908 EE Dimensions [mm] Cross Path AL value(nh/n 2 )±12% section Length Area A B C D (min) E (min) F M (min) (cm) (cm 2 ) 26μ 40μ 60μ 90μ EE EE EE EE EE EE EE EE EE

112 EQ Core series Identification of EQ Core Series H C EQ Core shape : EQ means EQ type cores Perm.(u) : permeability code(b:26, J:40, C:60) Inductance : apparent inductance [mh] factor for 1000turns Size : horizontal axis of cores [mm] Size : vertical axis of cores [mm] Material : material code(w, H, S, U) Where, H : High Flux Material [Fe / Ni] 26 : 26mm 19 : 19mm 165 : 165mH/N 2 at 1000turns Dimension specification of EQ Core series [Fig.1] mechanical out lines [unit : mm] about EQ core series POWDER CORES A ΦD B C F ΦE [Table 2] shows out dimension specification of EQ core series P/N 2014 EQ Dimensions [mm] Cross Path AL value(nh/n 2 )±12% section Length Area A B C D (min) E F (cm) (cm 2 ) 26μ 40μ 60μ EQ EQ EQ EQ EQ EQ EQ EQ EQ POWDER CORES

113 Block Core series Identification of Block Core Series W C Dimension specification of Block Core series [Fig.1] mechanical out lines [unit : mm] about Block core series Perm.(u) : permeability code(b:26, J:40, C:60 E:90) Size : height of cores [mm] Size : horizontal axis of cores [mm] Size : vertical axis of cores [mm] Material : material code(w, H, S, U) Where, W : Power Flux Material [Fe / Si] 80 : 80mm 30 : 30mm 20 : 20mm C : permeability 60 A B C Special Core Data [Table 2] shows out dimension specification of Block core series P/N A 50.5 Dimensions [mm] Cross Path AL value(nh/n 2 )±12% section Length Area B C (cm) (cm 2 ) 26μ 40μ 60μ 90μ

114 UU Core series Identification of UU Core Series S C UU Core shape : UU means UU type cores Perm.(u) : permeability code(b:26, J:40, C:60, E:90) Inductance : apparent inductance [mh] factor for 1000turns Size : horizontal axis of cores [mm] Size : vertical axis of cores [mm] Material : material code(w, H, S, U) Where, S : Sendust Material [Fe / Al / Si] 55 : 55mm 28 : 28mm 108 : 108mH/N 2 at 1000turns Dimension specification of UU Core series [Fig.1] mechanical out lines [unit : mm] about UU core series POWDER CORES A B L E C D [Table 2] shows out dimension specification of UU core series P/N 3111 UU Dimensions [mm] Cross Path AL value(nh/n 2 )±12% section Length Area A B C D E L (cm) (cm 2 ) 26μ 40μ 60μ 90μ UU UU UU UU UU UU UU POWDER CORES

115 Cylinder Core series Identification of Cylinder Core Series W C CD Core shape : CD means Cylinder type cores Perm.(u) : permeability code(b:26, J:40, C:60) Size : height of cores [mm] Size : diameter of cores [mm] Material : material code(w, H, S, U) Where, W : Power Flux Material [Fe / Si] 30 : 30mm 30 : 30mm C : permeability 60 Dimension specification of Cylinder Core series [Fig.1] mechanical out lines [unit : mm] about Cylinder core series ΦOD ΦOD Special Core Data HT HT [Table 2] shows out dimension specification of Cylinder Core series P/N A Dimensions [mm] B Cross section Area (cm 2 )

116

117 5CPI Core Data

118 CDR series Identification of CPI Core CDR Series CDR Size : height of cores [mm] Size : horizontal axis of cores [mm] Size : vertical axis of cores [mm] Core shape : CDR means Octagon type cores Where, CDR : Octagon Shape 65 : 6.5mm 65 : 6.5mm 15 : 1.5mm Dimension specification of CPI Core CDR Series [Fig.1] mechanical out lines [unit : mm] about CDR core series D H POWDER CORES C A B E F G [Table 2] shows out dimension specification of CDR core series [Size D, E, H : Customized] Model Width(A) Size(mm) Length(B) Height(D) Permeability (ui) CDR (±0.1) 2.9(±0.1) 0.9(±0.05) 45 CDR (±0.1) 2.9(±0.1) 1.0(±0.05) 45 CDR (±0.1) 3.9(±0.1) 0.9(±0.05) 45 CDR (±0.1) 3.9(±0.1) 1.0(±0.05) 45 CDR (±0.1) 3.9(±0.1) 1.5(±0.05) 45 CDR (±0.1) 6.5(±0.1) 1.05(±0.05) 45 CDR (±0.1) 6.5(±0.1) 1.40(±0.05) 45 CDR (±0.1) 6.5(±0.1) 1.65(±0.05) 45 CDR (±0.1) 6.5(±0.1) 2.85(±0.05) 45 CDR (±0.1) 8.0(±0.1) 2.80(±0.05) 45 CDR (±0.1) 8.0(±0.1) 3.80(±0.05) POWDER CORES

119 DR series Identification of CPI Core DR Series DR Where, DR : Drum Shape 13 : Φ13mm 40 : 4.0mm Size : height of cores [mm] Size : diameter of cores [mm] Core shape : DR means Drum type cores Dimension specification of CPI Core DR Series [Fig.1] mechanical out lines [unit : mm] about DR core series D E(I.D.) E A CPI Core Data A(I.D.) B F C [Table 2] shows out dimension specification of DR core series [Size D, E, F : Customized] Model Outside Diameter(A) Size(mm) Inside Diameter(E) Height(D) Permeability (ui) DR (±0.1) 1.5(±0.1) 0.82(±0.05) 45 DR (±0.1) 2.3(±0.1) 1.05(±0.05) 45 DR (±0.1) 3.0(±0.1) 0.90(±0.05) 45 DR (±0.1) 3.0(±0.1) 1.05(±0.05) 45 DR (±0.1) 3.0(±0.1) 1.35(±0.05) 45 DR (±0.1) 3.0(±0.1) 3.75(±0.05) 45 DR (±0.1) 3.5(±0.1) 3.70(±0.05) 45 DR (±0.1) 3.3(±0.1) 3.70(±0.05)

120 T series Identification of CPI Core T Series T Where, T : T Shape 60 : 6.0mm 20 : 2.0mm Size : height of cores [mm] Size : horizontal axis of cores [mm] Core shape : T means T type cores Dimension specification of CPI Core T Series [Fig.1] mechanical out lines [unit : mm] about T core series B E POWDER CORES A C D H F G [Table 2] shows out dimension specification of T core series [Size F, G, H : Customized] Model Width(A) Size(mm) Length(B) Height(H) Permeability (ui) T (±0.1) 6.51(±0.1) 2.5(±0.1) 50 T (±0.1) 7.75(±0.1) 2.5(±0.1) POWDER CORES