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| WSZ Vishay Wirewound Resistors, Surface Mount, Silicone or Cement Coated, High Power FEATURES * Low cost, high power * All welded construction * Ceramic core * Available on tape and reel STANDARD ELECTRICAL SPECIFICATIONS MODEL POWER RATING P25C W 1.8 TOLERANCE RESISTANCE RANGE E12/E241) RESISTANCE RANGE TC 50ppm/C - - - - - 1R0 - 9R99 % 1 2 5 10 1, 3 5, 10 TC-10...- 80ppm/K2) (CLASS 1) 1R0 - 510R R22 - 510R R10 - 510R R10 - 510R - TC 100... 180ppm/K (CLASS 3) - - 24R - 3K3 1R8 - 3K3 - - - TC 30ppm/C - - - - 10R0 - 15K 10R0 - 15K ENCAPSULATION WSZ6720 Cement WSZ7532 NOTES: 3.75 Silicone 1) Lower TC or other power range on request. 2) 1 TC 400ppm/K TECHNICAL SPECIFICATIONS PARAMETER Operating Temperature Range Maximum Working Voltage Weight (Typical) Terminal Strength TEMPERATURE RISE IN C 300 UNIT C V g lb WSZ6720 - 55/+ 250 (P x R) 1.0 10 minimum % RATED POWER 120 100 80 60 40 20 WSZ6720 1/2 WSZ7532 - 65/+ 350 (P x R) 1/2 0.7 10 minimum 200 WSZ6720 WSZ7532 100 WSZ7532 0 0 1 2 3 4 5 POWER IN WATT 0 - 55 50 150 250 350 AMBIENT TEMPERATURE IN C Temperature Rise3) 3) Measurement based on recommended solder pads Derating ORDERING INFORMATION WSZ6720 WSZ7532 MODEL 3 - CLASS 100 10 RESISTANCE VALUE 5% 5% TOLERANCE % BM R86 PACKAGING For packaging see appropriate catalog or web page www.vishay.com 108 For technical questions in Europe contact ww1resistors@vishay.com For technical questions in Americas/Asia contact ww2aresistors@vishay.com Document Number 30246 Revision 01-Oct-02 WSZ Wirewound Resistors, Surface Mount, Silicone or Cement Coated, High Power DIMENSIONS D A Vishay E B C Z a I b MODEL A WSZ6720 WSZ7532 MODEL a WSZ6720 WSZ7532 10 [0.394] 4.0 [0.157] 13 [0.512] 14.27 [0.562] B 17 [0.670] 19.86 [0.782] DIMENSIONS in millimeters [inches] C D 4.8 [0.189] 4.78 [0.188] 0.8 [0.031] 0.813 [0.032] E 5 [0.20] 8.18 [0.322] Z 3.6 [0.142] 6.5 [0.256] SOLDER PAD DIMENSIONS in millimeters [inches] b 10 [0.394] 9.50 [0.374] l 14.5 [0.57] 15.05 [0.593] PERFORMANCE TEST Temperature Cycling High Temperature Exposure Short Time Overload Shock, Specified Pulse Vibration, High Frequency Load Life Resistance to Soldering Heat CONDITIONS OF TEST - 55C to + 125C, 5 cycles, 15 minutes at each extreme 1000 hours at + 250C 5 x rated power for 5 seconds 100g's for 6 milliseconds, 10 shocks Frequency varied 10 to 2000Hz, 20g peak, 2 directions 6 hours each 2000 hours at rated power, + 25C, 1.5 hours "ON", 0.5 hours "OFF" + 260C solder, 10-12 second dwell, 25mm/second emergence TEST LIMITS WSZ6720 WSZ7532 3% R 3% R 1% R 1% R 1% R 3% R 1% R (2% + 0.05) R (2% + 0.05) R (2% + 0.05) R (0.2% + 0.05) R (0.2% + 0.05) R (3% + 0.05) R (0.5% + 0.05) R PACKAGING MODEL TAPE WIDTH WSZ6720 WSZ75324) 4) REEL DIAMETER 330mm 330mm/13" PIECES/REEL 1,250 350 CODE BM R86 24mm 32mm/Embossed Plastic Embossed Carrier Tape per latest revision of EIA-481-3 Document Number 30246 Revision 01-Oct-02 For technical questions in Europe contact ww1resistors@vishay.com For technical questions in Americas/Asia contact ww2aresistors@vishay.com www.vishay.com 109 |
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