• RARA

Product Features

  • 4-terminal shunt resistor
  • Resistance options of 0.2mΩ and 1mΩ
  • Tolerances of ±0.05% to ±1%
  • TCR of ±10 ppm/°C
  • Power rating of 100W (on a suitable heat sink)
  • Temperature range from -55°C to +100°C


The UHPS Ultra high power precision 4-terminal shunt resistor series from RARA offers a power rating of up to 100W on a suitable heat sink, with a maximum current limit of 707A (resistance value of 0.2mΩ). The UHPS series is available with resistance values of 0.2mΩ and 1mΩ, tolerance options as low as ±0.05% and a maximum TCR of ±10 ppm/°C. Short-term stability as low as ≤±0.1% at maximum current load for 1 hour.

  • 4-terminal shunt resistor
  • Temperature range of -55°C up to +100°C
  • Maximum rated power of 100W (≤ +50°C)
  • Resistance options of 0.2mΩ and 1mΩ
  • Tolerances options of ±0.05% (A), ±0.1% (B), ±0.5% (D) and ±1% (F)
  • Maximum working current of 707A at 0.2mΩ
  • Dielectric withstanding voltage of 500V AC for 60 seconds at a maximum leakage current of 2mA
  • TCR of ±10 ppm/°C
  • Short-term stability of ΔR ≤±0.1% for 1 hour at terminal & copper flange temperature ≤+50°C

Typical applications for the UHPS series include:

  • High current sensing
  • High capacity battery management
  • Charge/discharge test equipment
  • Laboratory power supplies


RARA UHPS Series Specification Table

Temperature range-55°C to +100°C
Rated power100W (on a suitable heatsink)
Resistance values0.2mΩ / 1mΩ
Tolerance±0.05% (A) / ±0.1% (B) / ±0.5% (D) / ±1% (F)
Maximum working current707A (at 1mΩ)
Dielectric withstanding voltage500V AC for 60s (Max. leakage current 2mA)
Short-term stabilityΔR ≤±0.1% (for 1hr at terminal & copper flange temperature ≤+50°C)

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Dimensions 21 x 70 x 60mm
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RARA UHPS Series Technical Library

RARA UHPS Series Resources

Product Datasheet