Precision Thin Film Nichrome Chip Resistors

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1 Resistors Precision Thin Film Nichrome hip Resistors Precision thin film technology Extended ohmic range 1R 3M Precision to ±0.01% and 5ppm/ Passivated range for superior humidity performance oad life stability and humidity to Pbfree standard with SnPb option EQ200 grade available ll Pbfree parts comply with EU Directive 2011/65/EU (RoHS2) Electrical Data Standard Range imiting Ohmic Value Range 1 1% & 0.% 0.01% PF 49R933K R95K 4R7 511K R 5K PF R933K 49R912K 5 49R95K 1R 1M 4R7332K PF R7332K 24R90K 5 24R9K 1R2M 4R72M 4R7 1M PF R7511K 4R7511K 24R9200K 5 24R930K 2 24R930K 1R 2M5 4R72M5 4R7 1M PF R7511K 24R90K 5 24R9K 2 24R9K 1R 2M5 4R72M5 PF R90K 5 24R9K 2 24R9K 1R 3M 4R73M PF R90K 5 24R90K 1R 3M 4R73M PF R90K 5 24R90K Note 1: Standard values E24 or E96. Other values may be available by request. Note 2: Higher values available on request. 11.

2 Precision Thin Film Nichrome hip Resistors Electrical Data EQQ200 Grade Standard Range Electrical Data High Range Electrical Data High Range PFH PFH PF0805H PF0805H PF1206H PF1206H PF12H PF12H PF PF PF0805 PF1206 PF12 PF20 PF12 * Standard values E24 or E96. imiting Ohmic Value Range imiting Voltage imiting (V) 0.% Ohmic Value Range * 0.01% 0.% 0.01% R7332K 24R90K 4R7332K 24R90K R7332K 24R9K 5 24R9K 4R7511K R9200K 1R1M 4R7511K 4R7 1M 5 24R930K 4R7511K 24R9200K R7511K R930K 24R90K 5 24R9K 24R90K R9K R90K 24R90K R9K 5 24R9K Electrical Data Passivated Range 24R90K PF20H imiting 5 24R9K 0.% 0.01% PF12H R2K RK 4R72K 24R92K PFP R912K * Standard values E24 or E96. Other values may be available by request. R332K PFP R0K Electrical Data Extended High Range R800K PF0805P imiting Ohmic R200K Value Range * R1M PF1206P 0.1 Voltage 1 0.% 0.01% (V) R0K PFX R332KR1M PF20P 0. 1 PF0805X 0. 1 R0KR0K PF1206X R1M PF12P R1M R0K PF12X R0R 4R70R Physical Data Electrical Data Passivated Range TT Electronics Dimensions reserves (mm) the right & Weight to make changes (mg) in product specification without notice or liability. imiting TT Electronics plc PFP % 0.% R9 0K 49R9 K R 332K R 49K R 1M0 R 0K R 200K R 499K Ohmic 1 Value Range * 3 0.% T RK 9

3 Electrical Data High Range Electrical Data High Range Ohmic Value Range imiting Voltage imiting (V) 0.% Ohmic Value Range * 0.01% 0.% 0.01% PFH R7332K 24R90K 4R7332K 24R90K PF PFH Series R7332K 24R9K 5 24R9K 4R7511K PF0805H R9200K 1R1M 4R7511K 4R7 1M 5 24R930K 4R7511K 24R9200K PF0805H Electrical Data EQQ200 Grade High 4R7511K Range 5 PF1206H R930K 24R90K imiting PF1206H 5 24R9K 24R90K % 0.% 5 24R9K PF12H R90K PFH R 332K R 49K9 PF12H 24R90K PF0805H 24R9K R 0K 5 24R9K PF1206H R 200K Electrical Data Passivated Range 24R90K PF20H R 1M0 PF12H 3 imiting R9K 0.% 0.01% R 499K PF20H PF12H R2K RK 4R72K 24R92K PFP R912K * Standard values E24 or E96. Other values may be available by request. R332K PFP R0K Electrical Data Extended High Range R800K PF0805P imiting Ohmic R200K Value Range * PF1206P 0.1 R1M Voltage 1 0.% 0.01% (V) R0K PFX R332K PF20P R1M 0. 1 PF0805X 0. 1 R0K R0K PF1206X R1M PF12P R1M R0K PF12X R0R 4R70R * Standard values E24 or E96. Other values may be available by request. Precision Thin Film Nichrome hip Resistors Physical Data Electrical Data Passivated Range Dimensions (mm) & Weight (mg) W Tmax ± ± 6 imiting 0.12 ± 0.12 ± Ohmic 1 Value Range * 1.0 ± ± 0 Voltage (V) ± 0.1 ± % T 1.6 ± 0.8 ± 5 ± ± 6 RK PFP 2.0 ± ± 0805 ± ± 9 49R912K ± 1.6 ± ± ± 20 W 12 PFP 3.2 ± 2.6 ± ± ± R332K 4.9 ± ± ± ± Wraparound terminations ± 3.1 ± ± ± 55 PF0805P R 1M onstruction PF1206P R1M thinfilm material is selectively deposited on a 96% alumina substrate together with metallic contacts at each end of the resistor. The unadjusted resistors are heat treated to give the required and stability, then a precisely R controlled 1M5 laser trim process adjusts PF20P 0. 1 the resistance value. Epoxy protection is applied and wraparound terminations are added and R plated 1M with Nickel then Tin. Each resistor is measured immediately before packing into tape. R 1M5 PF12P 1 Terminations R 1M * The Standard chips values are supplied E24 or E96. with Other 0% values may Sn be matte available plated by request. wraparound terminations suitable for soldering. 11.

4 Precision Thin Surface Film Mount Resistors Nichrome hip Resistors Physical Data Dimensions (mm) and Weight (mg) W T max Precision Surface Mount Resistors W Wraparound terminations T onstruction Physical thinfilm material Data is selectively deposited on a 96% alumina substrate together with metallic contacts at each end of the resistor. The unadjusted resistors are heat treated to give the required and stability, then a precisely controlled laser trim process adjusts the resistance value. Epoxy protection Dimensions Dimensions is applied (mm) (mm) and and Weight Weight wraparound (mg) (mg) terminations are added and plated with Nickel then Tin. Each resistor is measured immediately Wbefore packing T max max into tape Terminations The standard termination is 0% Sn matte plated wraparound suitable for soldering. SnPb plated option is available for T standard range PF over the restricted range below W Performance SnPb Termination Wraparound terminations Data Option Standard Range Range Wraparound terminations imiting Ohmic Value Range Test Parameters onditions Maximum change (+R) (ppm/ ) 1% 0.% > tolerance hip size tolerance onstruction to 12, R 0K to 12 thinfilm material is selectively deposited on a 96% alumina substrate together with metallic contacts at each end of the resistor. oad life The unadjusted PF0805 resistors are 00 hours rated 70 0.% heat treated to give 0.1 the required 0and stability, then a precisely controlled R 0K laser trim process adjusts the resistance value. Epoxy protection is 00 applied hours 40, wraparound 90 95%RH terminations % are added and plated R % with 0KNickel then Tin. Each resistor Short term is measured overload immediately before 6. packing x rated into tape., or 2 x EV, for 5 R 5K0 High temperature operation 00 hours at 1 0.% R 0.% 0K 0.% Terminations Temperature cycle 5 cycles 55, 1 R 200K The standard PF1206 termination is 0% Sn matte 0.1 plated wraparound 1suitable for soldering. SnPb plated option is available for standard Resistance to solder heat 270, % R % 200K range PF over the restricted range below. 235, 2 95% minimum R K coverage Performance Data Data High Standard Range/Extended High Range Test Test Parameters oad life Short oad term life overload High temperature operation Temperature Short term overload cycle Resistance High temperature to solder operation heat Temperature cycle Resistance to solder heat Performance Data Passivated 235, 2 Range 95% minimum coverage Performance Test Parameters Data High onditions Range/Extended High Range oad life Test Test Parameters oad oad life life Short term overload High Short Short temperature term term overload overload operation Temperature High High temperature temperature cycle operation operation Resistance Temperature Temperature to cycle cycle solder heat Resistance Resistance to to solder solder heat heat onditions 00 hours rated 70 40, 90 95%RH x rated hours, rated or 2 load x 70 for hours 40, at %RH 6. x rated 5 cycles 55,, or 21 x EV, for , hours at 1 5 cycles 235, 552, 1 270, 00 hours onditions rated 70 00hrs hours 40, rated rated 90 load load hrs x 40, 40, or 290 x EV, 95%RH 95%RH for x rated rated 00,, hours or or at 21 x EV, EV, for for cycles hours hours 55, at at cycles cycles 270, 55, 55, , 270, 235, 2 235, 235, 2 Performance Data Passivated Range > tolerance to 12 0.% % 0.% % Maximum change (+R) hip size, % 0.% % 0.% 95% minimum coverage % Maximum change (+R) to 12 Maximum change (+R) 0.% 0.% 0.% 95% minimum % % coverage 95% 95% minimum minimum coverage coverage tolerance to 12 0.% General Welwyn Noteomponents imited Bedlington Northumberland NE22 7, UK TT Telephone: Electronics +44 reserves (0) 1670 the right to make Facsimile: changes in +44 product (0) 1670 specification without notice info@welwyntt.com or liability. Website: Test Parameters onditions Maximum change (+R) to 12 oad TT Electronics life plc 00 hours rated 70 0.% 40, 90 95%RH 11.

5 Precision Thin Film Nichrome hip Resistors Performance Data Passivated Range Test Parameters oad life Short term overload High temperature operation Temperature cycle Resistance to solder heat Derating urve onditions 00 hours rated 70 40, 90 95%RH 6. x rated, or 2 x EV, for 5 00 hours at 1 5 cycles 55, 1 270, 235, 2 0 0% 0% 70 0% 0% 1 35% 0% 5 0% Maximum change (+R) to 12 0.% 95% minimum coverage Temperature Derating Proportion of Pr 0% 80% 60% 40% 20% 0% Standard & Passivated High Ranges mbient Temperature ( ) The terminations have an electroplated nickel barrier and tin coating. This ensures excellent 'leach' resistance properties and solderability. Packaging PF Resistors are supplied taped and reeled as as per IE Sizes 20 and 12 are in embossed plastic tape. Smaller sizes are in paper tape. pplication Notes PF resistors are ideally suited for handling by automatic methods due to their rectangular shape and the small dimensional tolerances. Electrical connection to a ceramic substrate or to a printed circuit board can be made by reflow or wave soldering of wraparound terminations. Wraparound terminations provide good leach properties and ensure reliable contact. Due to the robust construction, the PF can be immersed in the solder bath for 30 onds at 260. This enables the resistor to be mounted on one side of a printed circuit board and wireleaded components applied on the other side. PF resistors themselves can operate at a maximum temperature of 1 (see performance above) (5 for High grades). For soldered resistors, the joint temperature should not exceed 1. This condition is met when the stated power levels at 70 are used. 11.

6 Precision Thin Film Nichrome hip Resistors Ordering Procedure This product has two valid part numbers: European (Welwyn) Part Number**: PF111K54BI (, standard, ppm/, 1.54 kilohm ±, Pbfree) P F K 5 4 B I Size Range Value Tolerance Termination & Packing PF Omit for 13 = ±5ppm/ E24 = 3/4 characters = ±0.01% = EQ200 grade, Pbfree Standard 12 = ±ppm/ E96 = 3/4 characters W = ± I = Standard grade, Pbfree H = High 11 = ±ppm/ R = ohms B = ± Standard Packing 0805 X = Extended R = ±ppm/ K = kilohms = ±0.%,,000/reel 1206 P = Passivated 02 = ±ppm/ M = megohms D = ± to 12 00/reel 12 F = ±1% 20, /reel 20 T1* = Pbfree, 1K reel 12 to 1206, 20, 12 00/reel PB = SnPb, 1K reel 0805, /reel * Nonstandard; enquire to confirm availability ** pplies to all Ranges, Termination and Packing options. US (IR) Part Number*: PFWF1141BPT (, standard, ppm/, 1.54 kilohm ±, Pbfree) P F W F B P T Model Termination Value Tolerance Tape Packing PF W F = Pbfree 13 = ±5ppm/ 3 digits + multiplier T = ±0.01% P = Paper T = Tape & Reel W (0%Sn) 12 = ±ppm/ R = ohms for = ± ( to 12),,000/reel W 11 = ±ppm/ values <0 ohms B = ± E = Embossed to 12 00/reel W = ±ppm/ = ±0.% (20, 12) 20, /reel W = ±ppm/ D = ± W12 F = ±1% W20 W12 * pplies only to Standard Range, PbFree parts 11.

Precision Thin Film Nichrome Chip Resistors

Precision Thin Film Nichrome Chip Resistors Resistors Precision Thin Film Precision thin film technology Extended ohmic range 1R 3M Precision to ±0.01% and 5ppm/ Passivated range for superior humidity performance stability and humidity to RoHS compliant