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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 (1) Wattage rating is limited to 25 A maximum Note (2) Lead (Pb)-free termination STANDARD ELECTRICAL SPECIFICATIONS GLOBAL MODEL 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 TECHNICAL SPECIFICATIONS PARAMETER UNIT SPU MOLDED STYLE RESISTOR CHARACTERISTICS Temperature Coefficient 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 Numbering example: SPU-52 0.1  1 % S51 SPU-52 0.100  1 % S51 HISTORICAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKAGING 052R 000 1PU 0FDS

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] ABC 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 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 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 % 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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