wsc, wsn vishay dale www.vishay.com 94 document number 30102 revision 06-sep-01 for technical questions, contact ww2aresistors@vishay .com features ? all welded construction ? molded encapsulation ? wrap around terminations ? snpb electro tin plated terminations ? excellent stability at different environmental conditions ? high power ratings ? superior surge capability ? available in non-inductive styles with aryton-perry winding (wsn in lieu of wsc, maximum resistance is one-half wsc range) wirewound resistors, precision power, surface mount ordering information wsc2515 10 ? 1.0% r86 model resistance tolerance packaging ? % b43 = bulk pack r86 = tape and reel technical specifications parameter unit wsc-1/2 wsc-1 wsc2515 wsc-2 wsc4527/wsc6927 temperature ppm/?c 0.1 ? - 0.99 ? = 90 0.1 ? - 0.99 ? = 90 0.1 ? - 0.99 ? = 90 0.1 ? - 0.99 ? = 90 0.1 ? - 0.3 ? = 150 coefficient 1.0 ? - 4.99 ? = 50 1.0 ? - 26.5 ? = 50 1.0 ? - 26.5 ? = 50 1.0 ? - 9.9 ? = 50 0.31 ? - 0.99 ? = 90 26.51 ? and above = 20 26.51 ? and above = 20 10.0 ? and above = 20 1.0 ? - 9.9 ? = 50 10 ? and above = 20 dielectric withstanding v ac > 500 > 500 > 500 > 500 > 500 voltage insulation resistance ? > 10 9 > 10 9 > 10 9 > 10 9 > 10 9 operating temperature c - 65/ + 175 - 65/ + 175 - 65/ + 275 - 65/ + 175 - 65/ + 275 range maximum working voltage v (p x r) 1/2 (p x r) 1/2 (p x r) 1/2 (p x r) 1/2 (p x r) 1/2 weight/1000 pieces (typical) g 90 165 165 760 760 / 1675 standard electrical specifications model size power rating tolerance resistance encapsulation p 70 c range inch w % ? wsc-1/2 2012 0.5 0.5, 1, 5 0.1 - 4.99 epoxy wsc-1 2515 1.0 0.5, 1, 5 0.1 - 2.77k epoxy wsc2515 2515 1.0 0.5, 1, 5 0.1 - 2.77k thermoplastic wsc-2 4527 2.0 0.5, 1, 5 0.1 - 4.92k epoxy wsc4527 4527 2.0 0.5, 1, 5 0.1 - 4.92k thermoplastic wsc6927 6927 3.0 0.5, 1, 5 0.1 - 8k thermoplastic ? part marking: 1/2w - dale, value; 1w - model, value, tolerance, date code; 2w & 3w - dale, model, value, tolerance, date cod e.
www.vishay.com 95 wsc, wsn vishay dale document number 30102 revision 06-sep-01 for technical questions, contact ww2aresistors@vishay .com dimensions wirewound resistors, precision power, surface mount w l t w 1 h b l a model solder pad dimensions in inches [millimeters] ab l wsc-1/2 0.085 [2.16] 0.070 [1.78] 0.080 [2.03] wsc-1 0.090 [2.29] 0.115 [2.92] 0.120 [3.05] wsc2515 0.090 [2.29] 0.115 [2.92] 0.120 [3.05] wsc-2 0.155 [3.94] 0.230 [5.84] 0.205 [5.21] wsc4527 0.155 [3.94] 0.230 [5.84] 0.205 [5.21] wsc6927 0.155 [3.94] 0.235 [5.97] 0.470 [11.94] packaging model tape width diameter pieces/reel code wsc-1/2 12mm/embossed plastic 330mm/13" 2000 r86 wsc-1/wsc2515 16mm/embossed plastic 330mm/13" 2000 r86 wsc-2/wsc4527 24mm/embossed plastic 330mm/13" 1200 r86 wsc6927 32mm/embossed plastic 330mm/13 725 r86 reel model dimensions in inches [millimeters] lhtww 1 wsc-1/2 0.200 0.020 0.096 0.015 0.040 0.010 0.125 0.005 0.050 0.010 [5.08 0.508] [2.44 0.381] [1.02 0.254] [3.18 0.127] [1.27 0.254] wsc-1 0.250 0.020 0.110 0.015 0.045 0.010 0.150 0.005 0.098 0.005 [6.35 0.508] [2.79 0.381] [1.14 0.254] [3.81 0.127] [2.49 0.127] wsc2515 0.250 0.020 0.110 0.015 0.045 0.010 0.150 0.005 0.098 0 .005 [6.35 0.508] [2.79 0.381] [1.14 0.254] [3.81 0.127] [2.49 0.127] wsc-2 0.445 0.032 0.162 0.015 0.100 0.010 0.275 0.005 0.215 0.005 [11.30 0.813] [4.11 0.381] [2.54 0.254] [6.98 0.127] [5.46 0.127] wsc4527 0.455 0.020 0.167 0.010 0.100 0.010 0.275 0.005 0.215 0.005 [11.56 0.508] [4.24 0.254] [2.54 0.254] [6.98 0.127] [5.46 0.127] wsc6927 0.690 0.032 0.280 0.015 0.100 0.010 0.275 0.005 0.215 0.015 [17.53 0.813] [7.11 0.381] [2.54 0.254] [6.98 0.127] [5.46 0.381] embossed carrier tape per eia-481-1, 2, 3 performance test conditions of test test limits thermal shock - 55 c to + 150 c, 1000 cycles, 15 minutes at each extreme (0.5% + 0.05 ? ) ? r short time overload 5 x rated power for 5 seconds (0.2% + 0.05 ? ) ? r low temperature storage - 65 c for 24 hours (0.2% + 0.05 ? ) ? r high temperature exposure 1000 hours at + 275 c (+ 175 c for wsc-1/2, wsc-1 and wsc-2) (0.5% + 0.05 ? ) ? r bias humidity + 85 c, 85% rh, 10% bias, 1000 hours (0.2% + 0.05 ? ) ? r mechanical shock 100gs for 11 milliseconds, 5 pulses (0.1% + 0.05 ? ) ? r vibration frequency varied 10 to 500hz in one minute, 3 directions, 9 hours (0.1% + 0.05 ? ) ? r load life 1000 hours at rated power, + 70 c, 1.5 hours on, 0.5 hours off (1.0% + 0.05 ? ) ? r resistance to solder heat + 260 c solder, 10 -12 second dwell, 25mm/second emergence (0.5% + 0.05 ? ) ? r temperature rise derating -65 -25 25 75 125 175 225 275 rated power in % ambient temperature in c 120 100 80 60 40 20 0 0 0.5 1.0 1.5 2.0 2.5 3.0 temperature rise in c power in w 70 wsc2515 wsc4527 wsc6927 wsc-1/2 wsc-1 wsc-2 200 150 100 50 0 wsc-1 wsc2515 wsc-1/2 wsc6927 wsc-2 wsc4527
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