document number: 30102 for tec hnical questions, contact: ww2aresistors@vishay.com www.vishay.com revision: 17-feb-11 1 wirewound resistors, precision power, surface mount wsc, wsn vishay dale features ? all welded construction ? molded encapsulation ? wraparound terminations ? excellent stability at different environmental conditions ? high power ratings (up to 3 w) ? superior surge capability ? available in non-inductive styles with ayrton- perry winding (wsn in lieu of wsc, maximum resistance is one-half wsc range) ? aec-q200 qualified available (1) ? compliant to rohs directive 2002/95/ec note (1) flame retardance test ma y not be applicable to some resistor technologies. notes ? part marking: 1/2 w - dale, value; 1 w - model, value, toleranc e, date code; 2 w and 3 w - dale, model, value, tolerance, dat e code. (2) 0.1 % and 0.25 % is available on the wsc2515 for 0.499 ? to 2.5 k ? range. (3) as of 1/1/2010, the wsc0001 and wsc0002 are molded with thermo plastic in lieu of epoxy. reference pcn-dr-002-2009 and pcn-dr-00 3-2009 note (4) wsc2515 only standard electrical specifications global model historical model size power rating p 70 c w resistance range ? tolerance % weight (typical) g/1000 pieces encapsulation wsc01/2 wsc-1/2 2012 0.5 0.1 to 4.99 0.5, 1, 5 90 epoxy wsc0001 wsc-1 2515 1 0.1 to 2.77k 0.5, 1, 5 165 thermoplastic (3) wsc2515 wsc2515 2515 1 0.1 to 2.5k 0.1, 0.25, 0.5, 1, 5 (2) 165 thermoplastic wsc0002 wsc-2 4527 2 0.1 to 4.92k 0.5, 1, 5 760 thermoplastic (3) wsc4527 wsc4527 4527 2 0.1 to 4.92k 0.5, 1, 5 760 thermoplastic wsc6927 wsc6927 6927 3 0.1 to 8k 0.5, 1, 5 1675 thermoplastic technical specifications parameter unit wsc01/2 wsc0001 wsc2515 wsc0002 wsc4527/wsc6927 temperature coefficient ppm/c 50 = 1.0 ? to 4.99 ?? 90 = 0.1 ? to 0.99 ? 20 = 26.51 ? and above; 50 = 1.0 ? to 26.5 ? ; 90 = 0.1 ? to 0.99 ? 20 = 26.51 ? and above; 50 = 1.0 ? to 26.5 ? ; 90 = 0.31 ? to 0.99 ??? 150 = 0.1 ? to 0.3 ? 20 = 10.0 ? and above; 50 = 1.0 ? to 9.9 ? ; 90 = 0.1 ? to 0.99 ? 20 = 10 ? and above; 50 = 1.0 ? to 9.9 ? ; 90 = 0.31 ? to 0.99 ?? 150 = 0.1 ? to 0.3 ? dielectric withstanding voltage v ac > 500 insulation resistance ? > 10 9 operating temperature range c - 65 to + 175 - 65 to + 275 maximum working voltage v (p x r) 1/2 global part number information global part numbering example: wsc2515r7000fea global model size value tolerance packaging special wsc wsn 01/2 0001 2515 0002 4527 6927 r = decimal k = thousand r7000 = 0.70 ? 1k500 = 1.5 k ? b = 0.1 % (4) c = 0.25 % (4) d = 0.5 % f = 1.0 % g = 2.0 % h = 3.0 % j = 5.0 % k = 10 % ea = lead (pb)-free, tape/reel ek = lead (pb)-free, bulk ta = tin/lead, tape/reel (r86) ba = tin/lead, bulk (b43) (dash number) (up to 2 digits) from 1 to 99 as applicable historical part numbering example: wsc-1 0.7 ? 1 % r86 wsc-1 0.7 ? 1 % r86 historical model resistance value tolerance packaging * pb containing terminations are not rohs compliant, exemptions may apply ** please see document vishay material category policy: www.vishay.com/doc?99902 2515r7 000fea sc w
www.vishay.com for technical questions, contact: ww2aresistors@vishay.com document number: 30102 2 revision: 17-feb-11 wsc, wsn vishay dale wirewound resistors, precision power, surface mount dimensions in inches (millimeters) temperature rise derating note (1) as of 1/1/2010, wsc0001 and wsc0002 will be molded with ther moplastic and have the higher 275 c te mperature derating. note ? embossed carrier tape per eia-481. global model dimensions solder pad dimensions l h t w w 1 ab l wsc01/2 0.200 0.020 (5.08 0.508) 0.096 0.015 (2.44 0.381) 0.040 0.010 (1.02 0.254) 0.125 0.005 (3.18 0.127) 0.050 0.010 (1.27 0.254) 0.085 (2.16) 0.070 (1.78) 0.080 (2.03) wsc0001 0.250 0.020 (6.35 0.508) 0.110 0.015 (2.79 0.381) 0.045 0.010 (1.14 0.254) 0.150 0.005 (3.81 0.127) 0.098 0.005 (2.49 0.127) 0.090 (2.29) 0.115 (2.92) 0.115 (2.92) wsc2515 0.250 0.020 (6.35 0.508) 0.110 0.015 (2.79 0.381) 0.045 0.010 (1.14 0.254) 0.150 0.005 (3.81 0.127) 0.098 0.005 (2.49 0.127) 0.090 (2.29) 0.115 (2.92) 0.120 (3.05) wsc0002 0.455 0.020 (11.56 0.508) 0.167 0.010 (4.24 0.254) 0.100 0.010 (2.54 0.254) 0.275 0.005 (6.98 0.127) 0.215 0.005 (5.46 0.127) 0.155 (3.94) 0.230 (5.84) 0.205 (5.21) wsc4527 0.455 0.020 (11.56 0.508) 0.167 0.010 (4.24 0.254) 0.100 0.010 (2.54 0.254) 0.275 0.005 (6.98 0.127) 0.215 0.005 (5.46 0.127) 0.155 (3.94) 0.230 (5.84) 0.205 (5.21) wsc6927 0.690 0.032 (17.53 0.813) 0.280 0.015 (7.11 0.381) 0.100 0.010 (2.54 0.254) 0.275 0.005 (6.98 0.127) 0.215 0.015 (5.46 0.381) 0.155 (3.94) 0.235 (5.97) 0.470 (11.94) w l t w 1 h l a b 0 0.5 1.0 1.5 2.0 2.5 3.0 power in w 200 150 100 50 0 wsc0001 wsc2515 wsc01/2 wsc6927 wsc0002 wsc4527 temperature rise in c - 65 - 25 25 75 125 175 225 275 ambient temperature in c 120 100 80 60 40 20 0 70 wsc01/2 rated power in % wsc0001 (1) wsc0002 (1) wsc2515 wsc4527 wsc6927 performance test conditions of test test limits thermal shock - 55 c to + 150 c, 1000 cycles , 15 min at each extreme (0.5 % + 0.05 ? ) ? r short time overload 5 x rated power for 5 s (0.2 % + 0.05 ? ) ? r low temperature storage - 65 c for 24 h (0.2 % + 0.05 ? ) ? r high temperature exposure 1000 h at + 275 c (+ 175 c for wsc01/2) (0.5 % + 0.05 ?? ) ? r bias humidity + 85 c, 85 % rh, 10 % bias, 1000 h (0.2 % + 0.05 ? ) ? r mechanical shock 100 g s for 11 ms, 5 pulses (0.1 % + 0.05 ? ) ? r vibration frequency varied 10 hz to 500 hz in 1 min, 3 directions, 9 h (0.1 % + 0.05 ? ) ? r load life 1000 h at rated power, + 70 c, 1.5 h on, 0.5 h off (1.0 % + 0.05 ? ) ? r resistance to solder heat + 260 c solder, 10 s to 12 s dwell, 25 mm/s emergence (0.5 % + 0.05 ? ) ? r packaging model reel tape width diameter pieces/reel code wsc01/2 12 mm/embossed plastic 330 mm/13" 2000 ea/ta wsc0001/wsc2515 16 mm/embosse d plastic 330 mm/13" 2000 ea/ta wsc0002/wsc4527 24 mm/embosse d plastic 330 mm/13" 1200 ea/ta wsc6927 32 mm/embossed plastic 330 mm/13 725 ea/ta
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