Ultra High Power Precision Shunt Resistor

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