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.

Features
  • 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

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