Ptc thermistor what is it

PTC thermistors are ceramic semi-conductors which because of the very high Positve Temperature Coefficient lend themselves to a variety of applications.

Specially constructed versions of these products are available and this facility enables most applications to be catered for. Most typical application for PTC thermistors is to protect the windings of heavy duty motors and transformers.

The PTC thermistor, for the thermal protection of electrical machines, is a temperature dependant component. These include equipment with a near-zero reset time, extreme temperature conditions, and systems that experience frequent shorts. Special Thermistors Limit Inrush Current. How to Stop Inrush Current. Since , Ametherm has provided the most reliable and effective inrush current limiting solutions available. We deliver on that promise through innovative design, quality manufacturing, and exceptional customer support.

Search for:. PTC Thermistors vs. This entry was posted in Inrush Current. Bookmark the permalink. Our Distributors. Ask A Question. Get an Inrush Current Limiter Sample. About us Since , Ametherm has provided the most reliable and effective inrush current limiting solutions available.

In a circuit, they can limit in-rush current by self-heating when current is initially applied, and then allow normal current flow since their resistance drops to a negligible amount during steady-state operation.

This capability makes NTC thermistors the most commonly used thermistor. They are also the type most commonly used for temperature sensing applications.