Murata – Murata PRF Series PTC Thermistors


Ideal for temperature sensing of FETs, Power ICs, and other heat generating areas.

Exploiting the ceramic PTC characteristic (a sharp increase in resistance above a certain temperature), the Murata PRF series chip PTC thermistors are ideal for temperature sensing of FETs, Power ICs and other heat generating areas. Sharp changes in resistance make it possible to accurately detect overheating in multiple areas using a very simple circuit using the PTC thermistors in series. This allows the engineer to reduce the number of IC ports, thereby downsizing the equipment.


  • Fast response
  • Wide temperature range (-20°C to +140°C)
  • Outstanding noise resistance and impact resistance
  • RoHS compliant and halogen free
  • High reliability ceramic, solid state construction
  • Contactless operation ensures noiseless operation
  • Low profile EIA 0402, 0603 and 0805 sizes
  • Safety standards (UL E137188, VDE, TUV, etc.)


  • Automotive (LED lamp/navigation/motor)
  • Batteries/battery circuitry
  • Electronic point of sale equipment
  • Factory automation
  • Handheld devices
  • Power supply
  • Motor/motor controller
  • Smart meters
  • Security cameras
  • 3D printers