Standard High Temp r se Is Tro Th Ic K f Iml , h Ihg Tme Pare Teru r Ks s re Ise k ye Ferutae S Resistances from 10M to 1TOhms Resistance Tolerances to 0.25% Power Rating 0.05 to 2 Watts Non-Magnetic TCRs to 25ppm/C Special High Temperature Version to 300C High Value Thick Film Resistance Element Available in sizes 0420, 0603, 0805, 1206, 1210, 2512, 4020 a noitacilpp S Engine Sensors Data Recorders Surge Protection Temperature Sensors p tcudor Syrammu WORKING VOLTAGE (VAC) PRODUCT SERIES POWER RATING TEMPERATURE 1 TRIMMED 2 (RKS) SIZE (W) UNTRIMMED (> 5%) RANGE RKS07 0402 0.050 30 60 RKS14 0603 0.1 75 150 - 55C to + 155C RKS15 0805 0.125 100 200 (Standard Version) RKS18 1206 0.25 200 400 - 55C to + 300C (High Temperature Version RKS41 1210 0.35 300 600 TCR valid + 25C to + 125C ) RKS20 2512 1.00 1500 2000 RKS21 4020 2.00 4000 6000 1 Solder Pads must have sufficient heat conduction Power Derating Curve 120 2 See Power Derating Curve 100 TEMPERATURE COEFFICIENT: 25ppm/C to 3000ppm/C 80 TOLERANCE RANGE: 0.25% to 30% 60 40 a Velbalia o noitp S (Consult Factory) 20 Special Testing Requirements 0 0 50 100 150 200 250 300 350 Ambient Temperature (C) Hwo ot o redr RKS 21 W N 038M0 K E RESISTOR PACKAGE OPERATING TEMPERATURE RESISTANCE TOLERANCE PACKING THICK FILM CODE TEMPERATURE COEFFICIENT OF RESISTANCE (TCR) 07 = 0402 S = -55C to + 155C T = 25ppm/C 038M0= 38.0M C = 0.25% E = Embossed D = 0.50% Tape & Reel 14 = 0603 W = -55C to + 300C Q = 50ppm/C 380M0 = 380M F = 1.0% 15 = 0805 N = 100ppm/C 00368 = 3.86 G = 2.0% 18 = 1206 K = 250ppm/C 03860 = 386 J = 5.0% 41 = 1210 J = 500ppm/C 001T0 = 1.0T K = 10.0% 20 = 2512 H = 1000ppm/C Letter denotes decimal place. M = 20.0% 6 9 12 N = 30.0% 21 = 4020 G = 2000ppm/C M 10 , G 10 , T 10 F = 3000ppm/C Remaining 4 digits are significant or placeholders. Silver Termination Finish: Plat/Silver Example P/N: RKS21WN038M0KE is Resistor Thick Film, size 4020, -55C to + 300C, 100ppm/C, 38.0M, 10.0%, embossed tape & reel 54 www.johansondielectrics.com Rated Power ( % )r se Is Tro Th Ic K f Iml , h Ihg Tme Pare Teru r Ks s re Ise e lacirtcel c Hiretcara Scit S Tolerances Available ( % ) 2 Temperature Coefficients Available ( ppm/C ) 2 Voltage Coefficients Available ( ppm / V ) Resistance Ranges ( W ) Package Size 10M - 100M >100M - 500M >500M - 1G >1G - 10G >10G - 100G >100G - 1T 5 to 20% 5% to 20% 5% to 20% 10% to 30% 10% to 30% 50, 100 100, 250 250, 500 1000, 2000 2000, 3000 Contact Factory 0402 500ppm/V 1000ppm/V 1000ppm/V 2000ppm/V 5000ppm/V 1 to 20% 2% to 20% 5% to 20% 5% to 30% 10% to 30% 50, 100 100, 250 250, 500 500, 1000 2000, 3000 Contact Factory 0603 500ppm/V 500ppm/V 1000ppm/V 2000ppm/V 5000ppm/V 0.5 to 20% 2% to 20% 5% to 20% 5% to 20% 10% to 30% 50, 100 100, 250 250, 500 500, 1000 1000, 2000 - 0805 500ppm/V 500ppm/V 500ppm/V 1000ppm/V 3000ppm/V 0.5% to 20% 2% to 20% 5% to 20% 5% to 20% 10% to 30% 25, 50, 100 50, 100, 250 100, 250 500, 1000 1000, 2000 - 1206 250ppm/V 500ppm/V 500ppm/V 500ppm/V 1000ppm/V 0.5% to 20% 2% to 20% 5% to 20% 5% to 20% 5% to 20% 10% to 30% 25, 50, 100 50, 100, 250 100, 250 250, 500 500, 1000 1000, 2000 1210 25ppm/V 250ppm/V 250ppm/V 250ppm/V 500ppm/V 2000ppm/V 0.5% to 20% 1% to 20% 1% to 20% 2% to 20% 5% to 20% 10% to 30% 1 25, 50, 100 25, 50, 100 100, 250 100, 250 250, 500 500, 1000 2512 25ppm/V 50ppm/V 50ppm/V 100ppm/V 250ppm/V 1000ppm/V 0.25% to 0.5% to 20% 1% to 20% 2% to 20% 5% to 30% 10% to 30% 10% 1 25, 50, 100 25, 50, 100 50, 100 100, 250 500, 1000 4020 25, 50, 100 25ppm/V 25ppm/V 50ppm/V 100ppm/V 500ppm/V 10ppm/V 1 TCR in ppm/K +25C to +125C TCR below standard TCR (highest value) and values >100G +25C to +85C 2 VCR: typical values, all negative, not for all TCR values available e n Vlatnemnori c Hiretcara Scit S Specification Value Solderability 250C, 3s Max Soldering Temperature 260C, 10s Climatic Category 55 / 155 / 56 Max DR Long Term Stability <1 G W 1 G W - 10 G W >10 G W Storage 125C, 1000h <1% <2% <5% Load Life 70C, 1000h <0.5% <1% <2% Maximum Voltage, 1000h <0.5% <1% <2% 55 www.johansondielectrics.com