PE Series Current-Sensing Chip Resistors

PE Series Current-Sensing Chip Resistors

In high-power, current-sense applications, the low-temperature coefficient of resistance (TCR) provided by Yageo’s low-ohmic current sensor PE/PR series (based on metal technology), minimizes the resistance change caused by self-heating and high-temperature environments. Thermal electromotive force (EMF) is also an important consideration. Lower EMF is most likely to endure under harsh conditions.

The PE series, made of Mn-Cu alloy, is especially optimized for low-EMF (below µ0.03 µV/oC). The series is developed with substrates to provide better thermal dissipation and a wider resistance range up to 300 mΩ. Metal plate current-sensing resistors without multiple cuts are a related simple construction. They provide low-TCR down to ±25 ppm/°C, high power rating of up to 5 W, high-frequency performance, and low resistance down to 0.5 mΩ

Features Applications
  • EIA 0420 to 4527 case sizes
  • Low-resistance value from 0.5 mΩ to 1 Ω for minimizing power losses
  • High-power rating from 0.05 to 5 W
  • Tight tolerance within ±0.5% to exhibit actual current via voltage reading
  • Low-TCR to avoid distortion in measurement. TCR ranges from ±25 to ±100 ppm/°C for metal-type current-sensing chip resistors
  • Programmable current sources
  • Power supplies
  • Lighting
  • Medical instrumentation
  • Communication devices
  • Automotive power electronics