SPU Molded Style www.vishay.com Vishay Dale Wirewound Resistors, Molded Style, Current Shunts, Very Low Value, Four Terminal FEATURES • Molded four-terminal resistors for specialized applications Available • Extremely low resistance values for current sensing applications • Precision resistance tolerance • Low temperature coefficients • Complete welded construction • Material categorization: For definitions of compliance please see www.vishay.com/doc?99912 STANDARD ELECTRICAL SPECIFICATIONS HISTORICAL MODEL POWER RATING (1) P25 °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 GLOBAL MODEL Notes • Standard resistance tolerances available are 0.5 %, 1.0 %, 3.0 %, and 5.0 %. (1) Wattage rating is limited to 25 A maximum TECHNICAL SPECIFICATIONS PARAMETER Temperature Coefficient UNIT SPU MOLDED STYLE RESISTOR CHARACTERISTICS ppm/°C ± 100 (- 10 °C to + 80 °C) VAC 500 minimum Short Time Overload - 5 x power for 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 Dielectric Withstanding Voltage GLOBAL PART NUMBER INFORMATION Global Part Numbering example: SPU052R10000FD S P GLOBAL MODEL SPU050 SPU051 SPU052 SPU053 U 0 5 2 RESISTANCE VALUE L = m (below 0.01 ) R = Decimal 5L0000 = 0.005 R10000 = 0.10 R 1 0 0 0 TOLERANCE CODE D = ± 0.5 % F = ± 1.0 % H = ± 3.0 % J = ± 5.0 % 0 F D PACKAGING E (2) = Lead (Pb)-free, bulk D = Tin/lead, bulk SPECIAL (Dash Number) (up to 2 digits) From 1 to 99 as applicable Historical Part Numbering example: SPU-52 0.1 1 % S51 SPU-52 0.100 1% S51 HISTORICAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKAGING Note (2) Lead (Pb)-free termination Revision: 11-Jul-13 Document Number: 30220 1 For technical questions, contact: [email protected] 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 SPU Molded Style www.vishay.com Vishay Dale DIMENSIONS in inches [millimeters] D A C B 18 AWG 0.040 ± 0.002 [1.02 ± 0.051] DIMENSIONS in inches [millimeters] GLOBAL MODEL A B C D 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] MATERIAL SPECIFICATIONS Element: Nickel-chromium alloy or copper-manganese alloy, depending on resistance value Standard Terminals: SPU050/051: 100 % Sn or 60/40 Sn/Pb coated Copperweld® SPU052/053: 100 % Sn or 60/40 Sn/Pb coated copper Molding Material: SPU050/051 SPU052/053 thermo-set silicone Part Marking: DALE, model, wattage, value, tolerance, date code thermo-set epoxy AMBIENT TEMPERATURE DERATING Derating is required for ambient temperature above 25 °C per the following graph RATED POWER IN % DERATING 120 100 80 60 SPU052 and 053 40 SPU050 and 051 20 0 - 55 - 50 0 50 25 100 150 200 250 275 175 AMBIENT TEMPERATURE IN °C Revision: 11-Jul-13 Document Number: 30220 2 For technical questions, contact: [email protected] THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. 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