www.vishay.com for technical questions, contact: ww2bresistors@vishay.com document number: 30099 372 revision: 27-jul-10 wsl3637 vishay dale power metal strip ? resistors, low value (down to 0.001 ), surface mount, 4-terminal features ? 4-terminal design allo ws for 0.5 % resistance tolerance down to 0.003 ? ideal for all types of current sensing, voltage division and pulse applications including switching and linear power supplies, instruments and power amplifiers ? proprietary processing technique produces extremely low resistance values (down to 0.001 ) ? all welded construction ? solid metal nickel-chrome alloy resistive element with low tcr (< 20 ppm/c) ? solderable terminations ? low thermal emf (< 3 v/c) ? very low inductance, 0.5 nh to 5 nh ? excellent frequency response to 50 mhz ? compliant to rohs directive 2002/95/ec standard electrical specifications global model size power rating p 70 c w tolerance % resistance value range weight (typical) g/1000 pieces wsl3637 3637 3.0 0.5 and 1.0 0.001 to 0.01 274.3 technical specifications parameter unit resis tor characteristics temperature coefficient ppm/c 75 for 0.001 to 0.0029 , 50 for 0.003 to 0.010 operating temperature range c - 65 to + 170 maximum working voltage v ( p x r ) 1/2 global part number information new global part numbering: wsl36375l000fta (preferred part numbering format) global model resistance value tolerance code packaging code special wsl3637 l = m * r = decimal 5l000 = 0.005 r0100 = 0.01 * use l for resistance values < 0.01 d = 0.5 % f = 1.0 % ea = lead (pb)-f ree, tape/reel ek = lead (pb)-free, bulk (dash number) (up to 2 digits) from 1 to 99 as applicable ta = tin/lead, tape/reel (r86) ba = tin/lead, bulk (b43) historical part number example: wsl3637 0.005 1 % r86 (will continue to be accepted) wsl3637 0.005 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 3 6 3 7 5 l 0 0 0 f t a
document number: 30099 for tec hnical questions, contact: ww2bresistors@vishay.com www.vishay.com revision: 27-jul-10 373 wsl3637 power metal strip ? resistors, low value (down to 0.001 ), surface mount, 4-terminal vishay dale dimensions note ? embossed ca rrier tape per eia-481-2 . model dimensions in inches (millimeters) resistance range ( ) wl ht ab wsl3637 0.002 to 0.01 0.370 0.010 (9.40 0.254) 0.360 0.010 (9.14 0.254) 0.025 0.010 (0.635 0.254) 0.086 0.010 (2.18 0.254) 0.061 0.010 (1.55 0.254) 0.032 0.010 (0.813 0.254) 0.001 to 0.0019 0.138 0.010 (3.51 0.254) model solder pad dimensions in inches (millimeters) resistance range ( ) abcd l wsl3637 0.002 to 0.01 0.116 (2.95) 0.390 (9.91) 0.066 (1.68) 0.024 (0.610) 0.178 (4.52) 0.001 to 0.0019 0.168 (4.27) 0.390 (9.91) 0.066 (1.68) 0.024 (0.610) 0.074 (1.88) a c b w l t h i d b a 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 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 packaging model reel tape width diameter pieces/reel code wsl3637 16 mm/embossed plastic 330 mm/13" 4000 ea - 65 - 55 - 25 0 25 50 75 100 125 150 170 120 100 80 60 40 20 0 70 derating ambient temperature in c rated power in %
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.
|
