MR700 series www.vishay.com vishay mills revision: 17-aug-12 1 document number: 31818 for technical questions, contact: ww2aresistors@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 wirewound resistor, ultra precision, epoxy molded, radial lead features ? resistance values up to 1 m ? ? resistance tolerances down to 0.01 % ? temperature coefficients down to 2 ppm/c ? material categorization: for definitions of co mpliance please see www.vishay.com/doc?99912 standard electrical specifications global model power rating p 25 c w resistance range ? resistance range ? maximum working voltage v 0.01 %, 0.02 %, 0.05 %, 0.1 % 0.25%, 0.5 %, 1 % mr702 0.125 10 to 500k 1 to 500k 150 mr703 0.250 10 to 750k 1 to 750k 150 mr705 0.300 10 to 500k 1 to 500k 150 mr706 0.500 10 to 1m 1 to 1m 150 global part number information global part numberin g example: mr70233k330bae66 (visit www.vishay.net sap parts manual for all options) global model (5 digits) value (6 digits) tolerance (1 digit) tc (1 digits) packaging code (3 digits) special (up to 2 digits) mr702 mr703 mr705 mr706 r = decimal k = thousand m = million 1r5000 = 1.5 ? 1k5000 = 1.5 k ? 1m0000 = 1 m ? t = 0.01 % q = 0.02 % a = 0.05 % b = 0.1 % c = 0.25 % d = 0.5 % f = 1.0 % a = standard, 10 to 30 (w) b = 3900 (q) c = 4500 (m) d = 6000 (n) g = 5 j = 2 e66 = lead (pb)-free bulk pack (dash number) from 1 to 99 as applicable historical part numb er example: mr702w33k330b mr702 w = standard 33.33 k ? 0.1 % historical model tc resistance value tolerance r70233k 330ba e m 6 6
MR700 series www.vishay.com vishay mills revision: 17-aug-12 2 document number: 31818 for technical questions, contact: ww2aresistors@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 dimensions in inches [millimeters] material specifications element: nickel-chrome alloy, ot her materials available depending on tc requirements core: molded epoxy encapsulant: epoxy standard terminals: 100 % matte tinned copper part marking: mills, model, value, tolerance, date code note ? due to resistor size limitations some resistors will have minimal information marked on parts derating global model dimensions in inches [millimeters] l 0.010 [0.254] h 0.005 [0.127] w 0.010 [0.254] ld 0.002 [0.051] cc 0.015 [0.381] mr702 0.270 [6.86] 0.250 [6.35] 0.140 [3.56] 0.032 [0.813] 0.125 [3.18] mr703 0.540 [13.72] 0.270 [6.86] 0.150 [3.81] 0.032 [0.813] 0.250 [6.35] mr705 0.300 [7.62] 0.320 [8.13] 0.102 [2.59] 0.025 [0.635] 0.150 [3.81] mr706 0.585 [14.86] 0.525 [13.34] 0.160 [4.06] 0.032 [0.813] 0.400 [10.16] l h ld w cc 1.00 [25] min. rated power in % ambient temperature in c 100 80 60 40 20 0 20 40 60 80 100 120 140 160 0 120 140 160 180 1 %, 0.5 %, 0.25 %, 0.1 % tolerance 0.05 %, 0.02 % tolerance 0.01 % tolerance technical specifications parameter unit MR700 resistor characteristics temperature coefficient ppm/c 10 > 100 ? ; 20 for 10 ? to 100 ? ; 30 for 1 ? to 9.99 ? terminal strength lb 4.5 dielectric withstanding voltage v ac 750 maximum working voltage v ( p x r ) 1/2 operating temperature range c - 55 to + 145
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