SPU molded style www.vishay.com vishay dale revision: 27-feb-12 1 document number: 30220 for technical questions, contact: ww2bresistors@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 resistors, molded style, current shunts, very low value, four terminal features ? molded four-terminal re sistors for specialized applications ? extremely low resistance values for current sensing applications ? precision resistance tolerance ? low temperature coefficients ? complete welded construction notes ? standard resistance tolerances availabl e are 0.5 %, 1.0 %, 3.0 %, and 5.0 %. (1) wattage rating is li mited to 25 a maximum note (2) lead (pb)-free termination standard electrical specifications global model historical model power rating (1) p 25 c w resistance range ? tolerance % weight (typical) g SPU050 SPU-50 1 0.001 to 0.060 1 2.5 SPU051 SPU-51 2 0.001 to 0.060 1 3.7 SPU052 SPU-52 4 0.001 to 0.200 1 4.8 SPU053 SPU-53 5 0.010 to 0.500 1 10.8 technical specifications parameter unit SPU molded style resistor characteristics temperature coeffici ent ppm/c 100 (- 10 c to + 80 c) dielectric withstanding voltage v ac 500 minimum short time overload - 5 x power fo r 5 s, limited to 25 a maximum maximum working voltage v ( p x r ) 1/2 insulation resistance ? 10 000 m ? minimum dry operating temperature range c SPU050 and SPU051 = - 55 to + 175, SPU052 and SPU053 = - 55 to + 275 global part number information global part numbering example: SPU052r10000fd global model resistance value tolerance code packaging special SPU050 SPU051 SPU052 SPU053 l = m ? (below 0.01 ? ) r = decimal 5l0000 = 0.005 ? r10000 = 0.10 ? d = 0.5 % f = 1.0 % h = 3.0 % j = 5.0 % e (2) = lead (pb)-free, bulk d = tin/lead, bulk (dash number) (up to 2 digits) from 1 to 99 as applicable historical part number ing example: SPU-52 0.1 ? 1 % s51 SPU-52 0.100 ? 1 % s51 historical model resistance value tolerance code packaging 052r 000 1 pu 0fd s
SPU molded style www.vishay.com vishay dale revision: 27-feb-12 2 document number: 30220 for technical questions, contact: ww2bresistors@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-chromium alloy or copper-manganese alloy, depending on resistance value molding material: SPU050/051 thermo-set epoxy SPU052/053 thermo-set silicone standard terminals: SPU050/051: 100 % sn or 60/40 sn/pb coated copperweld ? SPU052/053: 100 % sn or 60/40 sn/pb coated copper part marking: dale, model, wattage , value, tolerance, date code ambient temperature derating derating is required for ambient temperature above 25 c per the following graph derating global model dimensions in inches [millimeters] abcd SPU050 0.660 0.010 [16.76 0.25] 0.312 0.010 [7.92 0.25] 0.200 0.015 [5.08 0.38] 1.000 + 0.25 - 0.125 [25.40 + 6.35 - 3.17] SPU051 0.790 0.010 [20.06 0.25] 0.375 0.010 [9.52 0.25] 0.200 0.015 [5.08 0.38] 1.000 + 0.25 - 0.125 [25.40 + 6.35 - 3.17] SPU052 1.000 0.010 [25.40 0.25] 0.375 0.010 [9.52 0.25] 0.125 0.015 [3.17 0.38] 1.000 minimum [25.40 minimum] SPU053 1.870 0.010 [47.50 0.25] 0.437 0.010 [11.10 0.25] 0.125 0.015 [3.17 0.38] 1.000 minimum [25.40 minimum] d a 18 awg 0.040 0.002 [1.02 0.051] b c 120 100 80 60 40 20 0 % n i r e w o p d e t a r - 55 - 50 0 50 100 150 200 250 275 ambient temperature in c SPU052 and 053 SPU050 and 051 25 175
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