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Ceramic PTC thermistors are used instead of conventional fuses to protect electrical devices such as motors, transformers, etc. or electronic circuits against overcurrent.Typical applications are SMPS/UPS, supplies for LED lighting and electrical power meter. They respond to inadmissibly high currents and also, if a preset temperature limit is exceeded. TDK offers leaded disk PTC thermistors up to an operating voltage range of 1000 V and SMD versions up to 230 V.

News

Nov. 29, 2018
"Products Conforming to European Union RoHS Directive / Product Information Concerning Revised China RoHS" has been updated.
Aug. 27, 2018
PTC Inrush Current Limiters, PTC Thermistors for Overcurrent Protection, PTC Thermistors for Telecom Applications: "How to use PTC thermistors as current protection" has been released.
Jul. 4, 2017
PTC Inrush Current Limiters, PTC Thermistors for Overcurrent Protection, PTC Thermistors for Telecom Applications: A new release of the product portals.
Apr. 12, 2017
“Classifications of Medical Devices” and TDK Products’ Coverage of Those Classes has been released.
Mar. 12, 2017
Release of "myTDK", our membership-based service
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