GWK vishay draloric www.vishay.com 84 document number 21006 revision 27-aug-02 for technical questions, contact ww1resistors@vishay .com features caps made from drawn brass, nickel plated machined caps with inner thread available easy to change when mounted with spring clips complete vitreous coating for perfect humidity protection tc 100. . .180ppm/k vitreous wirewound resistors with ferrules standard electrical specifications model power rating limiting resistance tolerance e-series p 40 c voltage range wv ? % GWK 10 10 GWK 10 ni 7 GWK 20 20 GWK 20 ni 13 GWK 40 30 GWK 40 ni 20 GWK 60 40 GWK 60 ni 25 GWK 100 80 GWK 100 ni 50 GWK 150 100 GWK 150 ni 60 GWK 200 160 GWK 200 ni 100 GWK 300 260 GWK 300 ni 180 280 400 580 850 1200 1600 2300 4000 1r8 - 16k 10 e 12 6r8 - 16k 5 e 24 270r - 16k 2 e 24 2r4 - 1k0 10 e 12 15r - 1k0 5 e 24 2r2 - 27k 10 e 12 12r - 27k 5 e 24 360r - 27k 2 e 24 4r7 - 1k8 10 e 12 20r - 1k8 5 e 24 3r3 - 43k 10 e 12 12r - 43k 5 e 24 470r - 43k 2 e 24 6r8 - 2k7 10 e 12 20r - 2k7 5 e 24 6r2 - 82k 10 e 12 6r2 - 82k 5 e 24 47r - 82k 2 e 24 13r - 5k1 10 e 12 13r - 5k1 5 e 24 8r2 - 82k 10 e 12 8r2 - 82k 5 e 24 47r - 82k 2 e 24 27r - 10k 10 e 12 27r - 10k 5 e 24 12r - 110k 10 e 12 12r - 110k 5 e 24 30r - 110k 2 e 24 36r - 15k 10 e 12 36r - 15k 5 e 24 20r - 180k 10 e 12 20r - 180k 5 e 24 20r - 180k 2 e 24 56r - 22k 10 e 12 56r - 22k 5 e 24 36r - 330k 10 e 12 36r - 330k 5 e 24 36r - 330k 2 e 24 100r - 43k 10 e 12 100r - 43k 5 e 24
www.vishay.com 85 GWK vishay draloric document number 21006 revision 27-aug-02 for technical questions, contact ww1resistors@vishay .com vitreous wirewound resistors with ferrules ordering information GWK 100 100r 5% model size set free for drawn resistance value tolerance caps or add ?4 for ? % machined caps with inner thread m4 (m4 is standard, other threads available) dimensions GWK 20 GWK 40 GWK 60 GWK 20 ni GWK 40 ni GWK 60 ni 12.3 0.8 [0.484 0.031 ] 15.3 0.8 [0.602 0.031 ] 15.3 0.8 [0.602 0.031 ] 51 1.3 [2.008 0.051 ]61 1.5 [2.402 0.059 ]81 2 [3.189 0.079 ] 11 [0.433] 14 [0.551] 14 [0.551 10 [0.394] 13 [0.512] 13 [0.512] 4.5 [0.177] 5.5 [0.217] 5.5 [0.217] model dimensions in millimeters [inches] GWK100 GWK 150 GWK 200 GWK 300 GWK 100 ni GWK 150 ni GWK 200 ni GWK 300 ni d 22 1 [0.866 0.039 ] 22 1 [0.866 0.039 ]22 1 [0.866 0.039 ] 22 1 [0.866 0.039 ] l 101 2.5 [3.976 0.098 ] 121 3 [4.764 0.118 ] 166.5 4.2 [6.555 0.165 ] 266.5 6.7 [10.492 0.264 ] d k 21 [0.827] 21 [0.827] 21 [0.827] 21 [0.827] l k 16 [0.63] 16 [0.63] 16 [0.63] 16 [0.63] d 10 [0.394] 10 [0.394] 10 [0.394] 10 [0.394] model dimensions in millimeters [inches] d l d k l k d GWK 10 GWK 10 ni see drawing figure 1 46 1 [1.811 0.039] 1.5 [0.059] 11 [0.433] ?7.5 0.5 [0.295 0.020] ?7 [0.276] m2 figure 1: GWK 10 l l k d k d d figure 2: GWK 20...GWK 300
GWK vishay draloric www.vishay.com 86 document number 21006 revision 27-aug-02 for technical questions, contact ww1resistors@vishay .com vitreous wirewound resistors with ferrules temperature rise 500 400 300 200 100 0 0 5 10 15 20 25 power in w temperature rise in c GWK 20 temperature rise 500 400 300 200 100 0 0 10 20 30 40 50 power in w temperature rise in c GWK 40 derating 120 100 80 60 40 20 0 -55 50 150 250 350 ambient temperature in c rated power in % temperature rise 500 400 300 200 100 0 0 2 4 6 8 10 power in w temperature rise in c GWK 10 temperature rise 500 400 300 200 100 0 0 20 40 60 80 100 power in w temperature rise in c GWK 150 temperature rise 500 400 300 200 100 0 0 40 80 120 160 200 power in w temperature rise in c GWK 200 GWK 300 temperature rise 500 400 300 200 100 0 0 10 20 30 40 50 power in w temperature rise in c GWK 60 temperature rise 500 400 300 200 100 0 0 20 40 60 80 100 power in w temperature rise in c GWK 100 40
www.vishay.com 87 GWK vishay draloric document number 21006 revision 27-aug-02 for technical questions, contact ww1resistors@vishay .com vitreous wirewound resistors with ferrules pulse handling for short pulses (less than 100 milliseconds) for single pulsed up to 100 milliseconds duration time the following energy resistance chart can be used to calculate the energy a resistor can handle. look to the resistance value or the next higher value of the model you need and follow this row to the energy per ohm column to the left. the energy per ohm value multiplied by the resistance value is the energy the resistor can handle for 100 milliseconds. this energy divided by .1 ms is the power the resistor can handle for 100 milliseconds. for the power the resistor can handle for 10 milliseconds needed divide the energy by .01. the maximum pulse power is limited at 625 x rated power. do not use this chart for GWK...ni styles. for more information and assistance please contact factory. energy resistance chart energy/ ? r [ ? ] energy/ ? r [ ? ] energy/ ? r [ ? ] energy/ ? r [ ? ] energy/ ? r [ ? ] energy/ ? r [ ? ] energy/ ? r [ ? ] energy/ ? r [ ? ] [ws/ ? ][ws/ ? ][ws/ ? ][ws/ ? ][ws/ ? ][ws/ ? ][ws/ ? ][ws/ ? ] 1.17e - 04 16.0k 1.15e - 04 27.0k 1.15e - 04 43.0k 1.15e - 04 82.0k 2.80e - 04 82.0k 2.80e - 04 110k 2.80e - 04 180k 2.79e - 04 330k 1.17e - 04 13.0k 1.16e - 04 2.40k 1.15e - 04 36.0k 1.15e - 04 68.0k 2.80e - 04 62.0k 2.80e - 04 82.0k 2.80e - 04 130k 2.80e - 04 240k 1.72e - 04 9.1k 1.70e - 04 16.0k 1.69e - 04 24.0k 1.68e - 04 43.0k 4.41e - 04 43.0k 4.40e - 04 56.0k 4.40e - 04 91.0k 4.40e - 04 160k 2.88e - 04 6.2k 2.83e - 04 11.0k 2.82e - 04 18.0k 2.81e - 04 33.0k 7.52e - 04 30.0k 7.51e - 04 39.0k 7.51e - 04 62.0k 7.50e - 04 120k 4.53e - 04 4.3k 4.47e - 04 7.5k 4.45e - 04 11.0k 4.42e - 04 22.0k 1.20e - 03 22.0k 1.20e - 03 30.0k 1.20e - 03 47.0k 1.20e - 03 82.0k 7.72e - 04 3.0k 7.65e - 04 5.1k 7.58e - 04 8.2k 7.54e - 04 15.0k 1.84e - 03 15.0k 1.83e - 03 20.0k 1.83e - 03 33.0k 1.83e - 03 62.0k 1.24e - 03 2.2k 1.23e - 03 3.9k 1.22e - 03 5.6k 1.21e - 03 11.0k 2.93e - 03 10.0k 2.93e - 03 15.0k 2.93e - 03 22.0k 2.92e - 03 39.0k 1.91e - 03 1.5k 1.87e - 03 2.7k 1.86e - 03 3.9k 1.84e - 03 7.5k 4.53e - 03 3.0k 4.51e - 03 4.3k 4.49e - 03 6.8k 4.48e - 03 12.0k 3.06e - 03 1.1k 3.00e - 03 1.8k 2.98e - 03 2.7k 2.95e - 03 5.1k 7.12e - 03 2.2k 7.09e - 03 3.0k 7.05e - 03 4.7k 7.04e - 03 9.1k 5.05e - 03 330 4.79e - 03 560 4.70e - 03 820 4.58e - 03 1.6k 1.14e - 02 1.6k 1.14e - 02 2.0k 1.13e - 02 3.3k 1.13e - 02 6.2k 8.11e - 03 220 7.61e - 03 390 7.44e - 03 560 7.20e - 03 1.1k 1.85e - 02 1.1k 1.84e - 02 1.5k 1.83e - 02 2.4k 1.83e - 02 4.3k 1.31e - 02 160 1.23e - 02 300 1.19e - 02 430 1.17e - 02 750 2.98e - 02 750 2.97e - 02 1.0k 2.94e - 02 1.6k 2.94e - 02 3.0k 2.06e - 02 110 2.01e - 02 200 1.94e - 02 300 1.89e - 02 560 4.81e - 02 560 4.78e - 02 750 4.75e - 02 1.2k 4.73e - 02 2.2k 3.56e - 02 75 3.24e - 02 150 3.16e - 02 200 3.04e - 02 390 1.14e - 01 390 1.14e - 01 560 7.23e - 02 1.0k 7.20e - 02 1.8k 5.77e - 02 56 5.30e - 02 100 5.10e - 02 150 4.93e - 02 270 1.79e - 01 300 1.78e - 01 390 1.13e - 01 910 1.13e - 01 1.6k 1.34e - 01 43 1.24e - 01 75 1.21e - 01 110 7.49e - 02 220 2.81e - 01 200 2.79e - 01 270 1.77e - 01 620 1.76e - 01 1.1k 2.14e - 01 30 1.98e - 01 51 1.90e - 01 75 1.17e - 01 200 4.81e - 01 150 4.79e - 01 180 2.77e - 01 430 2.76e - 01 750 3.47e - 01 20 3.14e - 01 36 3.00e - 01 56 1.83e - 01 150 7.75e - 01 100 7.69e - 01 130 4.75e - 01 300 4.72e - 01 560 5.96e - 01 15 5.48e - 01 24 5.22e - 01 36 2.88e - 01 100 1.19e + 00 68 1.17e + 00 100 7.62e - 01 220 7.57e - 01 390 9.93e - 01 10 8.86e - 01 18 8.41e - 01 27 4.96e - 01 68 1.87e + 00 51 1.85e + 00 68 1.17e + 00 150 1.16e + 00 270 1.54e + 00 7.5 1.38e + 00 13 1.29e + 00 20 7.98e - 01 51 2.92e + 00 36 2.89e + 00 47 1.83e + 00 110 1.81e + 00 200 2.52e + 00 5.1 2.21e + 00 9.1 2.05e + 00 15 1.23e + 00 36 4.61e + 00 27 4.56e + 00 36 2.85e + 00 82 2.82e + 00 150 4.00e + 00 3.9 3.48e + 00 6.8 3.26e + 00 10 1.93e + 00 27 7.46e + 00 18 7.36e + 00 24 4.50e + 00 56 4.45e + 00 100 6.58e + 00 2.7 5.64e + 00 4.7 5.26e + 00 6.8 3.05e + 00 18 1.21e + 01 12 1.19e + 01 18 7.24e + 00 39 7.16e + 00 68 1.12e + 01 1.8 9.11e + 00 3.6 8.50e + 00 5.1 4.84e + 00 13 1.97e 01 8.2 1.93e + 01 12 1.17e + 01 27 1.15e + 01 51 1.56e + 01 2.2 1.42e + 01 3.3 7.86e + 00 9.1 1.89e + 01 20 1.86e + 01 36 1.29e + 01 6.2 GWK10 GWK 20 GWK 40 GWK 60 GWK 100 GWK 150 GWK 200 GWK 300
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