How should an appropriate PTC product be selected? | FAQ

FAQ

How should an appropriate PTC product be selected?

Voltage / Current / Temperature Protection Devices

Current Protection Devices

PTC Thermistors for Overcurrent Protection

A. An overcurrent protection PTC should be carefully selected according to specified design requirements by maximum voltage, rated and switching current over operational temperature range, maximum permissible current, and acceptable temerature on circuit board for selection of Tref.
Please refer to 1.1.4 Selection criteria of application notes of TDK: https://www.tdk-electronics.tdk.com/download/531352/fe1cb76d4e0b71f74699b7490bc138ed/pdf-applicationnotes.pdf