uldcr www.vishay.com vishay draloric revision: 22-nov-11 1 document number: 21026 for technical questions, contact: ww1resistors@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 stainless steel braking/crowbar resistor features ? high pulse energy capability up to 3.46 mj ? surface temperature in crease below 450 k for single pulse ? operating temperature: - 55 c to + 375 c ? modular system - user expandable ? material categorization: for definitions of compliance please see www.vishay.com/doc?99912 note (1) rectangular pulse t = 200 ms, ti me between 2 pulses: > 160 min standard electrical specifications model resistance value resistance tolerance pulse energy e (1) rated dissipation p 40 c rated current i pulse current i (1) temperature coefficient uldcr01 5 m ? 10 % 0.14 mj 8 kw 1265 a 12 ka 900 ppm/k uldcr02 7 m ? 0.20 mj 6 kw 926 a uldcr03 10 m ? 0.29 mj 4 kw 632 a uldcr04 20 m ? 0.58 mj 2 kw 316 a uldcr05 40 m ? 1.15 mj 4 kw 316 a uldcr06 60 m ? 1.73 mj 6 kw 316 a uldcr07 80 m ? 2.30 mj 8 kw 316 a ULDCR08 100 m ? 2.88 mj 10 kw 316 a uldcr09 120 m ? 3.46 mj 12 kw 316 a part number and product description part number: uldcr07r080klx000 model variant value tolerance code packaging code special uldcr 01 02 03 04 05 06 07 08 09 4 digit value r = decimal r080 = 0.08 ? k = 10.0 % lx = loose pack without quantity 000 = standard 3 digits alphanumerical code for customized design product description: uldcr07 r08 10 % lx uldcr 07 r08 10 % lx model variant value tolerance code packaging code cr0 7 0 0k r ld x00 l u 0 8 free datasheet http:///
uldcr www.vishay.com vishay draloric revision: 22-nov-11 2 document number: 21026 for technical questions, contact: ww1resistors@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 functional perfromance dimensions model dimensions in millimeters lww 1 w 2 h mass (kg) uldcr01 235 190 10 20 250 16.5 uldcr02 235 160 10 20 250 12.375 uldcr03 235 130 10 20 250 8.25 uldcr04 235 100 10 20 250 4.125 uldcr05 235 130 10 20 250 8.25 uldcr06 235 160 10 20 250 12.375 uldcr07 235 190 10 20 250 16.5 ULDCR08 235 220 10 20 250 20.625 uldcr09 235 250 10 20 250 24.75 w w 2 w 1 top view l h derating t a rated power in % - 55 ambient temperature in c 0 20 40 60 80 100 120 - 100 - 50 0 50 100 150 200 250 300 350 400 40 375 free datasheet http:///
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