PTC Thermistors

PTC thermistor having a positive temperature coefficient (TC) and are therefore called (PTC = Positive Temperature Coefficient) and PTCs. Their resistance increases with increasing temperature. They consist of doped ceramic materials based on barium titanate. If current flows through the PTC, it heats up. Thereby its resistance increases. This behavior can be utilized inter alia for the purpose of over-current limit and time delay. Other areas of application: the turn-brief pulses of current (Eg for degaussing color picture tubes or starting of induction motors) and the use as a heat source (heater).

PPL / PPD Series


  • Overload Protection
  • Voltage Ratings:
    AC 12V to 1000V
  • Resistance Range:
    0.3Ω to 10kΩ

PPL Series


  • Telecom Application
  • Voltage Ratings:
    AC 270V to 500V
  • Resistance Range:
    7Ω to 50Ω

PPL Series (Twin SMD)


  • Telecom Application
  • Voltage Ratings:
    AC 250V to 300V
  • Resistance Range:
    10Ω to 50Ω

PSA Series


  • Motor Starting Application
  • Voltage Ratings:
    AC 160V to 430V
  • Resistance Range:
    3.3Ω to 68Ω

PSB Series


  • Inrush Current Limiter
  • Voltage Ratings:
    AC 140V to 560V
  • Resistance Range:
    10Ω to 100Ω

PLA Series


  • Lighting Application
  • Voltage Ratings:
    AC 420V to 650V
  • Resistance Range:
    68Ω to 4700Ω

TPM-C Series


  • Temp. Sensing (Automotive)
  • Voltage Ratings:
    DC 32V
  • Resistance Range:
    470Ω to 680kΩ
  • Operaing Temperature Range:
    -40°C to +140°C

PPL Series


  • Inrush Current Limiter
  • Voltage Ratings:
    AC 270V to 500V
  • Resistance Range:
    10Ω to 1000Ω

TPM-S Series


  • Temperature Sensing
  • Voltage Ratings:
    DC 24V / 32V
  • Resistance Range:
    100Ω to 47kΩ
  • Operaing Temperature Range:
    -25°C to +160°C

TPM-P Series


  • Over-Curent Protection
  • Voltage Ratings:
    DC 20V to 400V
  • Resistance Range:
    15Ω to 1500Ω

PTL / PTM Series


  • Temperature Sensor
  • Voltage Ratings:
    DC 16V / 30V
  • Resistance Range:
    10Ω to 50Ω
  • Sensing Temperature:
    55°C to 180°C

PH Series


  • Heating Application
  • Voltage Ratings:
    AC 12V to 600V
  • Resistance Range:
    7Ω to 50Ω


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