r se Is Tro w Idnuower Pcer Is Ino ms T fwr s re Ise k ye Ferutae S Resistance from 0.005 to 50kOhms Precision, Flame Proof and Pulse Withstanding Tolerance to 0.01% High Power to 4 Watts Flame Resistant UL 94V-0 Superior Surge Handling Capability High Temperature Rating up to 275 Low Temperature Coefficient to 20ppm/C Non-Inductive Windings available a noitacilpp S Motor Control Power Supplies Braking Systems Pressure Transducers p tcudor Syrammu PRODUCT POWER SERIES RESISTANCE RATING (W) DIELECTRIC TEMPERATURE TEMPERATURE INSULATION 1 (RWF) RANGE () 70 C STRENGTH TOLERANCE COEFFICIENT RANGE RESISTANCE C1 0.01 to 400 0.5 >10 : 20ppm/C C2 0.005 to 3k 1 0.01% 1 to 10 : C3 0.01 to 15k 2 1000 VAC to 50ppmC - 55C 5% >1000 C4 0.01 to 25k 3 to <1 : Call Factory MOhms / Dry + 275C C5 0.01 to 50k 4 0.1% D1 0.005 to 0.05 1 200ppm/C 500 VAC to Call Factory For Lower D2 0.005 to 0.07 2 5% 1 For non-inductive windings, divide max resistance by 2 Power Derating Curve 120 100 80 Maximum Working Voltage = 60 40 a Velbalia o noitp S (Consult Factory) Special Testing Requirements 20 Special Pulse Requirements 0 0 50 100 150 200 250 300 350 Ambient Temperature (C) Hwo ot o redr RWF N C4 U 380R0 B E RESISTOR WINDINGS PACKAGE CODE, TEMPERATURE COEFFICIENT RESISTANCE TOLERANCE PACKING WIREWOUND SMT WATTS, RESISTANCE OF RESISTANCE (TCR) S = Standard C1, 0.5W, 0.01 to 400 U = 20ppm/C 0R038 = 0.038 T = 0.01% E = Embossed N = Non- Q = 0.02% Tape & Reel C2, 1.0W, 0.005 to 3k Q= 50PPM/C 003K8 = 3.8K Inductive A = 0.05% C3, 2.0W, 0.01 to 15k L = 200ppm/C 038K0 = 38.0K B = 0.1% C4, 3.0W, 0.01 to 25k Z = special 380K0 = 380.0K F = 1.0% 003M8 = 3.8M C5, 4.0W, 0.01 to 50k J = 5.0% Letter denotes decimal place. 3 6 D1, 1.0W, 0.005 to 0.05 R = decimal., K 10 , M 10 D2, 2.0W, 0.005 to 0.07 Remaining 4 digits are significant placeholders For Tin/Lead coated leads, add - Pb to part number. Standard Termination Finish: Electroless Tin Example P/N: RWFNC4U380R0BE is Resistor Wirewound Precision SMT Non-Inductive, 3.0W, 20ppm/C, 380, 0.1%, embossed tape & reel 34 www.johansondielectrics.com Rated Power (%)r se Is Tro w Idnuower Pcer Is Ino ms T fwr s re Ise m ce Hlacina c Hiretcara Scit S Lead Thickness 0.006 .015mm Tolerances 0.002 0.05mm Package Code C1 C2 C3 C4 C5 D1 D2 0.190 0.260 0.450 0.625 0.260 A (Tolerances) 0.820 20.83 0.450 11.43 0.015 0.4mm 4.83 6.60 11.43 15.83 6.60 0.130 0.155 0.155 B (Tolerances) 0.250 6.35 0.270 6.86 0.295 7.49 0.250 6.35 0.015 0.4mm 3.30 3.94 3.94 Dimensions 0.110 0.125 0.100 C (Tolerances) 0.180 4.57 0.250 6.35 0.305 7.75 0.100 2.54 Inches mm 0.015 0.4mm 2.79 3.18 2.54 0.060 0.070 D (Tolerances) 0.070 1.78 0.120 3.05 0.120 3.05 0.150 3.81 0.120 3.05 0.015 0.4mm 1.52 1.78 0.040 0.070 0.070 F (Tolerances) 0.100 2.54 0.135 3.43 0.190 4.83 0.100 2.54 0.015 0.4mm 1.02 1.78 1.78 E (Tolerances) 0.100 0.120 0.120 0.190 4.83 0.150 3.81 0.245 6.22 0.190 4.83 0.015 0.4mm 2.54 3.05 3.05 Stand-Off Inches mm 0.005 0.005 0.005 Height (Tolerances) 0.005 0.13 0.005 0.13 0.005 0.13 0.005 0.13 0.005 0.13mm 0.13 0.13 0.13 0.062 0.096 0.096 Width (Tolerances) 0.150 3.81 0.200 5.08 0.220 5.59 0.150 3.81 0.015 0.4mm 1.57 2.44 2.44 Solder Pad 0.100 0.150 0.150 Height (Tolerances) 0.200 5.08 0.220 5.59 0.250 6.35 0.200 5.08 Inches mm 0.015 0.4mm 2.54 3.81 3.81 0.250 0.337 0.540 0.700 0.337 Length (Tolerances) 0.900 22.86 0.540 13.72 0.015 0.4mm 6.35 8.56 13.72 17.78 8.56 e n Vlatnemnori p re Fecnamro Environmental Performance (MIL-STD 202) DR Maximum Load Life 1% + 0.05 Moisture Resistance Dielectric 0.5% + 0.05 Storage Shock Thermal Shock 0.5% + 0.05 5X Overload (5s) Resistance to Heat Solder (260C, 10s) p gnigakca i n Fnoitamro Package Code C1 C2 C3 C4 C5 D1 D2 Reel/Tape Width mm 12 16 24 24 32 16 24 Small 650 600 250 125 180 600 250 Large 3000 2000 1000 500 500 2000 1000 Humidity Packaging Notes: Moisture Barrier Bags (MBB) are used to package surface mount components. These bags include a dessicant and a Humidity Indicator Card to monitor humidity levels. All bags are marked with Moisture-Sensitive Identification Labels. A Moisture Sensitivity Level (MSL) rating of 2 (1-year floor life) applies to the Johanson RWF Series. This datasheet is subject to change without notice. 35 www.johansondielectrics.com