www.vishay.com for technical questions, contact: ww2bresistors@vishay.com document number: 31057 408 revision: 06-apr-11 this document is subject to change without notice. the products described herein and this document ar e subject to specific disclaimers, set forth at www.vishay.com/doc?91000 wsl...18 high power vishay dale power metal strip ? resistors, high power (2 x standard wsl), low value (down to 0.001 ? ), surface mount features ? ideal for all types of current sensing, voltage division and pulse applications including switching and linear power supplies, instruments, power amplifiers ? proprietary processing technique produces extremely low resistance values (down to 0.001 ? ) ? specially selected and stabilized materials allow for high power rati ngs (2 x standard wsl rating) ? all welded construction ? solderable terminations ? very low inductance 0.5 nh to 5 nh ? solid metal nickel-chrome or manganese-copper alloy resistive element with low tcr (< 20 ppm/c) ? excellent frequency response to 50 mhz ? low thermal emf (< 3 v/c) ? aec-q200 qualified available ? compliant to rohs directive 2002/95/ec note ? part marking: value; tolerance: due to resistor size limitations some resistors will be marked with only the resistance value. standard electrical specifications global model size power rating p 70 c w resistance value range ? weight (typical) g/1000 pieces tol. 0.5 % tol. 1.0 % wsl0603...18 0603 0.20 0.01 to 0.1 0.01 to 0.1 1.9 wsl0805...18 0805 0.25 0.005 to 0.2 0.005 to 0.2 4.8 wsl1206...18 1206 0.5 0.005 to 0.2 0.001 to 0.2 16.2 wsl2010...18 2010 1.0 0.004 to 0.5 0.001 to 0.5 38.9 wsl2512...18 2512 2.0 0.003 to 0.04 0.001 to 0.04 63.6 technical specifications parameter unit resis tor characteristics temperature coefficient ppm/c 275 for 1 m ? to 2.9 m ? , 150 for 3 m ? to 4.9 m ? 110 for 5 m ? to 6.9 m ? , 75 for 7 m ? to 0.5 ? operating temperature range c - 65 to + 170 maximum working voltage v ( p x r ) 1/2 global part number information global part numbering example: wsl25124l000fta18 global model resistance value tolerance code packaging code special wsl0603 wsl0805 wsl1206 wsl2010 wsl2512 l = m ? * r = decimal 5l000 = 0.005 ? r0100 = 0.01 ? * use l for resistance values < 0.01 ? d = 0.5 % f = 1.0 % j = 5.0 % ea = lead (pb)-f ree, tape/reel ek = lead (pb)-free, bulk 18 = high power option ta = tin/lead, tape/reel (r86) tg = tin/lead, tape/reel (rt1, for wsl0603 and wsl0805) ba = tin/lead, bulk (b43) historical part numbering example: wsl2512-18 0.004 ? 1 % r86 wsl2512-18 0.004 ? 1 % r86 historical model resistance value tolerance code packaging code * pb containing terminations are not rohs compliant, exemptions may apply ** please see document vishay material category policy: www.vishay. com/doc?99902 l251 4l0 2 ws t 0 8 fa 0 1
document number: 31057 for tec hnical questions, contact: ww2bresistors@vishay.com www.vishay.com revision: 06-apr-11 409 this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 wsl...18 high power power metal strip ? resistors, high power (2 x standard wsl), low value (down to 0.001 ? ), surface mount vishay dale dimensions in inches (millimeters) derating note ? embossed carrier tape per eia-481 . model resistance range ( ? ) dimensions solder pad dimensions lwh tabl wsl0603...18 0.01 to 0.1 0.060 0.010 (1.52 0.254) 0.030 0.010 (0.76 0.254) 0.013 0.010 (0.330 0.254) 0.015 0.005 (0.381 0.127) 0.040 (1.01) 0.040 (1.01) 0.020 (0.50) wsl0805...18 0.005 to 0.2 0.080 0.010 (2.03 0.254) 0.050 0.010 (1.27 0.254) 0.013 0.010 (0.330 0.254) 0.015 0.005 (0.381 0.127) 0.040 (1.02) 0.050 (1.27) 0.020 (0.50) wsl1206...18 0.001 to 0.0019 0.126 0.010 (3.20 0.254) 0.063 0.010 (1.60 0.254) 0.025 0.010 (0.635 0.254) 0.041 0.010 (1.04 0.254) 0.062 (1.57) 0.070 (1.78) 0.030 (0.76) 0.002 to 0.0059 0.025 0.010 (0.635 0.254) 0.006 to 0.20 0.020 0.010 (0.508 0.254) wsl2010...18 0.001 to 0.0069 0.200 0.010 (5.08 0.254) 0.100 0.010 (2.54 0.254) 0.025 0.010 (0.635 0.254) 0.058 0.010 (1.47 0.254) 0.093 (2.36) 0.120 (3.05) 0.055 (1.40) 0.007 to 0.5 0.020 0.010 (0.508 0.254) 0.055 (1.40) 0.120 (3.05) 0.130 (3.30) wsl2512...18 0.001 to 0.0049 0.250 0.010 (6.35 0.254) 0.125 0.010 (3.18 0.254) 0.025 0.010 (0.635 0.254) 0.087 0.010 (2.21 0.254) 0.120 (3.05) 0.145 (3.68) 0.050 (1.27) 0.005 to 0.0069 0.047 0.010 (1.19 0.254) 0.083 (2.11) 0.125 (3.18) 0.007 to 0.04 0.030 0.010 (0.762 0.254) 0.065 (1.65) 0.160 (4.06) 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 storage - 65 c for 24 h (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 rated power, + 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, 7a and 7b not required (0.5 % + 0.0005 ? ) ? r l t w h l b a 70 120 100 80 60 40 20 0 - 65 - 50 - 25 0 25 50 75 100 125 150 170 ambient temperature in c rated power in % packaging model reel tape width diameter pieces/reel code wsl0603...18 8 mm/punched paper 178 mm/7" 5000 ea wsl0805...18 8 mm/punched paper 178 mm/7" 5000 ea wsl1206...18 8 mm/embossed plastic 178 mm/7" 4000 ea wsl2010...18 12 mm/embossed plastic 178 mm/7" 4000 ea wsl2512...18 12 mm/embossed plastic 178 mm/7" 2000 ea
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