HCSK High-Current Surface-Mount Shunts with Kelvin

By Stackpole Electronics, Inc. 71

HCSK High-Current Surface-Mount Shunts with Kelvin

Stackpole's HCSK is an all-metal surface-mount current shunt with Kelvin terminations for high-accuracy low-resistance sensing. The HCSK2725 is rated up to 5 W at ambient temperatures up to +100°C, utilizing unique materials and a raised element design. The robust HCSK is available in 1% and 5% tolerances and 50 ppm TCR with excellent demonstrated stability over life, high-temperature exposure, moisture resistance, rapid change of temperature, and short time overload testing.

The HCSK2725 resistance value range has been expanded to include 1 mΩ, 3 mΩ, and 5 mΩ values. This surface-mount shunt is suitable for sensing currents up to 70 A as lead resistance is eliminated with the four-pin connection. The high temperature capability, accuracy, and stability are ideal for applications including power modules, frequency converters, motor controls, hybrid power current sensing, and automotive engine controls and management.

  • Precision resistor performance that is impervious to high moisture conditions
  • 2 W to 5 W continuous power rating at ambient temperatures up to +100°C
  • Low self-heating due to raised element
  • Kelvin terminations provide a 4-pin connection to eliminate lead resistance and improve accuracy
  • 1 mΩ, 3 mΩ, and 5 mΩ resistance values
  • Capable of sensing up to 70 A of current
  • 50 ppm TCR for accuracy across a wide range of temperatures
  • 1% and 5% absolute resistance tolerances
  • Excellent environmental and overload stability
  • Low inductance of typically <3 nH
  • 100% RoHS compliant