PTC Thermistors, Mini Radial Leaded

Part Number Information
Part #: Price/Availability:
PTCSL20T Buy Now
PTCSL40T Buy Now

These directly heated thermistors have a positive temperature coefficient and are primarily intended for sensing.


  • Well-defined protection temperature levels
  • Fast reaction time (< 15 s in still air)
  • Accurate resistance for ease of circuit design
  • Excellent long term behavior (< 1 °C or 5 % after 1000 h at Tn + 15 °C)
  • Wide range of protection temperatures (70 °C to 150 °C)
  • No need to reset supply after overtemperature switch
  • Small size and rugged
  • Coated leaded and naked devices available


  • Over-temperature protection and control in:
    • Industrial electronics
    • Power supplies
    • Electronic data processing
    • Motor protection