PTC thermal sensors

PTC sensors are generally known as thermistors. They are made of materials that conduct electricity better at low temperatures than at high temperatures. Their electrical resistance increases as the temperature rises, which give them a positive temperature coefficient.

PTC thermistors are often used as alternatives to NTCs in the automotive industry. They can even be found in optimised manufacturing processes in aerospace technology, amongst other applications, on account of their high temperature coefficients. PTCs are also used for temperature compensation in electrical circuits.

eaw Relaistechnik offers the installation of NTC, PTC, KTY, PT100, PT500 or PT1000 thermistors within our trusted housing range for the ½-inch thermal switch series.
With this solution, you have the option to replace traditional bimetallic thermostats with temperature sensors featuring NTC or PTC elements as thermistors immediately without having to change the design of your tools or your construction documentation.

Material and temperature ranges

  • Semiconducting polycrystalline ceramics and special metals, such as platinum
  • PTC resistance -> wires made from platinum alloys
  • Installation temperature range extends from
    -20°C to just under 200°C