Now Encased in rugged stainless steel, the MLS is perfect for high reliability military systems and applications operating above 85 C. For our highest performing 25 C Flatpacks, choose type HVMLS available in a special stainless steel case for high vibration applications up to 5g. Specify type HRMLS for high reliability Flatpacks which are subjected to MIL level burn-in processes to ensure established reliability. Specifications Temperature Range 55 C to +25 C Rated Voltage Range 5. Vdc to 25 Vdc Capacitance Range 22 µf to 47, µf Capacitance Tolerance ±2% Highlights - Near-hermetic welded seal - Stainless-steel case - years expected operating life - Withstands more than 8, feet altitude - Type HV up to 5g - Type HR, High Reliability Leakage Current Ripple Current Multipliers.2 CV µa, @ 25 C and 5 mins. Case Temperature 45 C 55 C 65 C 75 C 85 C 95 C 5 C 5 C 25 C.4.32.22.2..87.7.5. Ambient Temperature, No Heatsink 45 C 55 C 65 C 75 C 85 C 95 C 5 C 5 C 25 C.63.58.54.49.44.38.3.22. Frequency 5 Hz 6 Hz 2 Hz 36 Hz khz 5 khz khz & up 5 to 4 V.95.96..3.4.4.4 6 to 25 V.8.84..8.25.3.3 Low Temperature Characteristics Impedance ratio: Z 55 ⁰C Z +25 ⁰C (5-2 Vdc) 2 (25-25 Vdc) Endurance Life Test, h @ full load at 85 C Capacitance ±% ESR 2% of limit DCL % of limit DC Life Test 2 h at rated voltage &25 C Capacitance ±% ESR 2% of limit DCL % of limit Shelf Life Test 5 h at 25 C Capacitance % of limit ESR % of limit DCL % of limit Vibration Mounting: Vibration capability is dependent upon mounting restraint. The optional welded mounting tabs, alone, are not capable of sustaining the high vibration levels. To achieve the high vibration levels as published on right, additional mounting restraint is required. Standard MLS Flatpack: g Hz to 2 khz Sine Swept,.6 pp max and g. Type HVMLS Flatpack.5 and 2. case length, 5g Type HVMLS Flatpack 2.5 and 3. case length, 3g MIL-STD-22, Meth. 24, Sine Swept, IEC 668-2-6
Vibration Test Level The specimens, while deenergized or operating under the load conditions specified, shall be subjected to the vibration amplitude, frequency range, and duration specified for each case size. Amplitude The specimens shall be subjected to a simple harmonic motion having an amplitude of either.6-inch double amplitude (maximum total excursion) or peak level specified above (XXg peak), whichever is less. The tolerance on vibration amplitude shall be ± percent. Frequency Range The vibration frequency shall be varied logarithmically between the approximate limits of to 2, Hz. Sweep Time and Duration The entire frequency range of to 2, Hz and return to Hz shall be traversed in 2 minutes. This cycle shall be performed 2 times in each of three mutually perpendicular directions (total of 36 times), so that the motion shall be applied for a total period of approximately 2 hours. Interruptions are permitted provided the requirements for rate of change and test duration are met. High Reliability Test/Burn-in Established Reliability capacitors shall be subjected to a minimum of percent of the dc rated voltage at 85 ºC for 48 hours minimum but not to exceed 96 hours. During this test, capacitors shall be adequately protected against temporary voltage surges of percent or more of the test voltage. After burn-in, the capacitors shall be returned to room ambient conditions and the dc leakage, capacitance, and ESR shall be measured with respect to specified limits. Thermal Resistance Large Sides Heatsinked one both Case Length.5" 2." 3." Insulation ºC/W ºC/W ºC/W None 4.3 3. 2. Polyester 4.7 3.4 2.2 None 2.8 2..3 Polyester 3. 2.2.4 ESL Weight Terminals Ripple Current Capability Air Cooled Heatsink Cooled Example 3 nh measured /4 from case at MHz Case EK 43 g typical Case EA 76 g typical Case EB 92 g typical 8 AWG copper wire with 6/4 tin-lead electroplate, 2 amps max The ripple current capability is set by the maximum permissible internal core temperature, 25 ºC. The ripple currents in the ratings tables are for 85 ºC case temperatures. For air temperatures without a heatsink use the multipliers Ambient Temperature, No Heatsink. Temperature rise from the internal hottest spot, the core, to ambient air is T = I 2 (ESR)(θcc + θca) where θcc is the thermal resistance from core to case and θca from case to ambient. To calculate maximum ripple capability with the MLS attached to a heatsink use the maximum core temperature and the values for θcc. As an illustration, suppose you operate an insulated MLS332M6EBC in 65 ºC air and attach it to a commercial heatsink with a free-air thermal resistance of 2.7 ºC/W. Use a good thermal grease between the MLS and the heatsink, and the total thermal resistance is 2.7 +.8 or 4.5 ºC/W. The power which would heat the core to 25 C is (25-65)/4.5 or 3.3 W. For an ESR of 3 mω, 3.3 W equates to a ripple current of 2.7 A, however, the wire leads are rated for only 2 A.
Part Numbering System HV HR MLS 82 M 2 EB A Optional Optional Type Capacitance Tolerance Rated Voltage Case Code Insulation Mounting Style High Vibration High Reliability MLS 82=82 µf 2 = µf Examples: Standard MLS: MLS82M2EBC High Reliability: HRMLS82M2EBC High Vibration: HVMLS82M2EBC High Reliability, High Vibration: HVHRMLS82M2EBC Outline Drawings M=±2% Vdc EK, L=.5 in. EA, L=2. in EB, L=3. in. * other sizes available = bare can = polyester A = mounting tabs C = two leads/no tabs D = hook leads/tabs * other mounting tab options available Note: The polyester tape wrap may add up to.2 inches to the thickness and width of the capacitor. Standard Type MLS Type HV, Rilled Construction.3.36.3.36 Style A: Mounting Tabs Style C: No Tabs.88±. L +.375 ±.3.4 DIA, 8 AWG LEADS (TYP).56..75....±..75±..375. L ±.2.5 MIN L ±.2.5 MIN.36.3 Style D: Hook Leads.88±. L +.375 ±.3.56 ±. SLOT.56 Dia..75±..±..36.3.375±. L ±.2.4 DIA, 8 AWG LEADS (TYP).26±..75 ±. DIA Case Length Weight Code L (in) (g) EK.5 43 EA 2. 76 EB 3. 92 Mounting tabs are welded to the case.
Ratings ESR max Ripple (A) ESR max Ripple (A) Cap 25 C (mω) Case @ 85 C Length Cap 25 C (mω) Case @ 85 C Length (µf) Catalog Part Number 2 Hz 2 khz 2 Hz 2 khz (inches) (µf) Catalog Part Number 2 Hz 2 khz 2 Hz 2 khz (inches) 25 C: 5 Vdc, 5 C: 7.5 Vdc, 25 C Surge: Vdc 2, MLS22M6EAC 72 52.9 4. 2. 9, MLS93M5REKC 76 66.6 2.5.5 3,3 MLS332M6EBC 44 3 5.3 8.2 3. 28, MLS283M5REAc 5 44 4.3 5.4 2. 25 C: 75 Vdc, 5 C: V, 25 C Surge: 25 Vdc 47, MLS473M5REBC 3 26 8.5 9.9 3., MLS2M75EKC 2 78 9.6.5.5 25 C: 7.5 Vdc, 5 C: V, 25 C Surge: 3 Vdc,6 MLS62M75EAC 76 54.6 3.8 2. 7, MLS73M7R5EKC 77 67.5 2.4.5 2,7 MLS272M75EBC 46 33 4.9 7.6 3. 26, MLS263M7R5EAc 5 45 4. 5. 2. 25 C: Vdc, 5 C: 5 V, 25 C Surge: 8 Vdc 43, MLS433M7R5EBC 3 27 8.2 9.5 3. 5 MLS5MEKC 355 248 5.4 6.4.5 25 C: Vdc, 5 C: 6 V, 25 C Surge: 2 Vdc 77 MLS77MEAC 238 66 6.6 7.8 2. 3, MLS33MEKC 8 69.3 2.2.5,3 MLS32MEBC 43 8.5. 3. 23, MLS233MEAC 5 45 4. 5. 2. 25 C: 5 Vdc, 5 C: 2 V, 25 C Surge: 25 Vdc 38, MLS383MEBC 3 27 8.2 9.5 3. 4 MLS4M5EKC 388 253 5. 6.4.5 25 C: 2 Vdc, 5 C: 3 V, 25 C Surge: 4 Vdc] 6 MLS6M5EAC 26 68 6.3 7.8 2. 6,8 MLS682M2EKC 84 69. 2.2.5, MLS2M5EBC 58 8.. 3., MLS3M2EAC 56 46 3.6 5. 2. 25 C: 2 Vdc, 5 C: 25 Vdc, 25 C Surge: 3 Vdc 7, MLS73M2EBC 33 27 7.6 9.5 3. 33 MLS33M2EKC 426 258 4.9 6.2.5 25 C: 4 Vdc, 5 C: 5 V, 25 C Surge: 63 Vdc 49 MLS49M2EAC 285 72 6. 7.7 2. 4,4 MLS442M4EKC 97 7.3 2..5 82 MLS82M2EBC 72 3 7.7. 3. 6,6 MLS662M4EAC 62 46 2.9 5. 2. 25 C: 25 Vdc, 5 C: 25 Vdc, 25 C Surge: 3 Vdc, MLS3M4EBC 36 27 6.9 9.5 3. 22 MLS22M25EKC 597 393 4. 5..5 25 C: 6 Vdc, 5 C: 8 V, 25 C Surge: Vdc 33 MLS33M25EAC 399 262 5. 6.3 2.,5 MLS52M6EKC 6 77 9.8.5.5 56 MLS56M25EBC 24 57 6.5 8. 3. Typical Performance Curves Type MLS Operating Life in Kilohours vs Ripple Current (9% V) Expected Operating Life, kh 45 ⁰C 55 ⁰C 65 ⁰C 75 ⁰C 85 ⁰C..2.3.4.5.6.7.8.9..2.3.4.5 Rated Ripple-Current Multiple
Typical Performance Curves Ratio to 25 ºC, 2 Hz Value.2.2.8.6.4.2 MLS Capacitance vs Temperature & Frequency, µf 75 V 2 µf 25 ºC 65 ºC 25 ºC ºC 2 ºC 97 µf 4 ºC 88µF 55 ºC Ratio ESR to 25 ºC, 2 Hz Value 5.3 MLS ESR vs Temperature and Frequency, µf, 75 V.33 Ω.47 Ω.28 Ω 55 ºC 4 ºC 2 ºC ºC 25 ºC 65 ºC 25 ºC 5 Frequency (Hz). Frequency (Hz) Ratio to 25 ºC, 2 Hz Value.2.8.6.4 Capacitance vs Temperature & Frequency, 82 µf, 2 V 25 ºC ºC 85 ºC 65 ºC 45 ºC 2 ºC 4 ºC 25 ºC ºC.2 Frequency (Hz) 8 MLS3M5EBD Life Test at 25 C, 5 V Capacitance 9 8 Capacitance (µf) 6 4 ESR 7 6 5 4 3 2 2 2 4 6 8 2 3 Test Hours
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