www.vishay.com for technical questions, contact: ww2bresistors@vishay.com document number: 31057 370 revision: 26-jul-10 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 ratings (2 x standard wsl rating) ? all welded construction ? solid metal nickel-chrome or manganese-copper alloy resistive element with low tcr (< 20 ppm/c) ? solderable terminations ? very low inductance 0.5 nh to 5 nh ? excellent frequency response to 50 mhz ? low thermal emf (< 3 v/c) ? 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 0.01 to 0.2 0.01 to 0.2 4.8 wsl1206...18 1206 0.5 0.006 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 new global part numbering: wsl25124l000fta 18 (preferred part numbering format) 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) ba = tin/lead, bulk (b43) historical part number ex ample: wsl2512-18 0.004 1 % r86 (will continue to be accepted) 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 w s l 2 5 1 2 4 l 0 0 0 f t a 1 8
document number: 31057 for tec hnical questions, contact: ww2bresistors@vishay.com www.vishay.com revision: 26-jul-10 371 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 ca rrier tape per eia-481-1a . 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 0.01 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 cycles , 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 vari ed 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 pa per 178 mm/7" 5000 ea wsl0805-18 8 mm/punched pa per 178 mm/7" 5000 ea wsl1206-18 8 mm/embossed pl astic 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
document number: 91000 www.vishay.com revision: 18-jul-08 1 disclaimer legal disclaimer notice vishay all product specifications and data are subject to change without notice. vishay intertechnology, inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, ?vishay?), disclaim any and all liability fo r any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. vishay disclaims any and all li ability arising out of the use or application of any product describ ed herein or of any information provided herein to the maximum extent permit ted by law. the product specifications do not expand or otherwise modify vishay?s terms and conditions of purcha se, including but not limited to the warranty expressed therein, which apply to these products. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of vishay. the products shown herein are not designed for use in medi cal, life-saving, or life-sustaining applications unless otherwise expressly indicated. customers using or selling vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify vishay for any damages arising or resulting from such use or sale. please contact authorized vishay personnel to obtain written terms and conditions regarding products designed for such applications. product names and markings noted herein may be trademarks of their respective owners.
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