www.vishay.com for technical questions, contact: ww2bresistors@vishay.com document number: 30180 1 revision: 26-jan-11 WSLP4026 vishay dale power metal strip ? resistors, very high power (to 7 w), low value (down to 0.0005 ? ), surface mount features ? high power to foot print size ratio ? ideal for all types of current sensing, voltage division and pulse applications including switching and linea r power supplies, instruments, power amplifiers, and shunts ? proprietary processing technique produces extremely low resistance values, down to 0.0005 ? ? specially selected and stabilized materials allow for high power rating (to 7 w) ? all welded construction ? solid metal nickel-chrom or manganese-copper alloy resistive element with low tcr (< 20 ppm/c) ? very low inductance 0.5 nh to 5 nh ? low thermal emf (< 3 v/c) ? aec-q200 qualified available (1) ? compliant to rohs directive 2002/95/ec note (1) flame retardance test may not be applicable to some resistor technologies. notes ? power rating depends on the max. temper ature at the solder point, component placement density and the substrate material . ? part marking: model, value, tolerance, date code . (2) other values may be available, contact factory . standard electrical specifications global model size power rating p 70 c w tolerance % resistance value range ? resistance values currently available (2) ? weight (typical) g/1000 pieces WSLP4026 4026 5.0 1.0, 5.0 2m 2m 420 WSLP4026 4026 7.0 1.0, 5.0 0.5m to 1m 0.5m, 1m 420 technical specifications parameter unit resis tor characteristics temperature coefficient ppm/c 75 over temperature of + 20 c to + 60 c operating temperature range c - 65 to + 170 maximum working voltage v ( p x r ) 1/2 global part number information global part numbering: ws lp4026l5000fea (WSLP4026, 0.0005 ? , 1 %) global model resistance value tolerance code packaging code special WSLP4026 l = m ? l5000 = 0.0005 ? 2l000 = 0.0020 ? f = 1.0 % j = 5.0 % ea = lead (pb)-f ree, tape/reel ek = lead (pb)-free, bulk (dash number) (up to 2 digits) from 1 to 99 as applicable ** please see document vishay material category policy: www.vishay. com/doc?99902 w s l 4 0 2 6 l 5 0 0 0 f e a p
document number: 30180 for tec hnical questions, contact: ww2bresistors@vishay.com www.vishay.com revision: 26-jan-11 2 WSLP4026 power metal strip ? resistors, very high power (to 7 w), low value (down to 0.0005 ? ), surface mount vishay dale dimensions derating note ? embossed carrier tape per eia-481 . model dimensions in inches (millimeters) lwhrstu WSLP4026 0.400 0.008 (10.1 0.2) 0.260 + 0.012/- 0.008 (6.6 + 0.3/- 0.2) 0.117 0.008 (3.0 0.2) 0.193 0.004 (4.9 0.1) 0.028 0.004 (0.7 0.1) 0.016 0.002 (0.4 0.05) 0.078 0.004 (2.0 0.1) b w d a b c l w s r h t u terminal area 0.004 model solder pad dimensions in inches (millimeters) abcdw WSLP4026 0.220 (5.6) 0.096 (2.44) 0.035 (0.89) 0.035 (0.89) 0.420 (10.6) model resistance value (m ? ) element material WSLP4026 0.5 mn-cu WSLP4026 1.0 mn-cu WSLP4026 2.0 ni-cr 70 120 100 80 60 40 20 0 170 150 125 100 75 50 25 0 - 25 - 50 - 65 ambient temperature in c rated power in % performance test conditions of test test limits thermal shock - 55 c to + 150 c, 1000 cycl es, 15 min at each extreme (0.5 % + 0.0005 ? ) ? r short time overload 5 x rated power for 5 s (0.5 % + 0.0005 ? ) ? r low temperature operation - 65 c for 45 min (0.5 % + 0.0005 ? ) ? r high temperature exposure 1000 h at + 170 c (1.0 % + 0.0005 ? ) ? r bias humidity + 85 c, 85 % rh, 10 % bias, 1000 h (0.5 % + 0.0005 ? ) ? r mechanical shock 100 g s for 6 ms, 5 pulses (0.5 % + 0.0005 ? ) ? r vibration frequency varied 10 hz to 2000 hz in 1 min, 3 directions, 12 h (0.5 % + 0.0005 ? ) ? r load life 1000 h at + 70 c, 1.5 h on, 0.5 h off (1.0 % + 0.0005 ? ) ? r resistance to solder heat + 260 c solder, 10 s to 12 s dwell, 25 mm/s emergence (0.5 % + 0.0005 ? ) ? r moisture resistance mil-std-202, method 106, 0 % power, 7b not required (0.5 % + 0.0005 ? ) ? r packaging model reel tape width diameter pieces/reel code WSLP4026 16 mm/embossed plastic 330 mm/13" 1500 ea
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