App note: Varistors – connection and terminology

Littelfuse cheat sheet on all varistors related. Link here (PDF) Transient suppressors can be exposed to high currents for short durations in the nanoseconds to millisecond time frame. Littelfuse Varistors are connected in parallel to the load, and any voltage drop in the leads to the varistor will reduce its effectiveness. Best results are obtained […]

App note: Ceramic Varistors TNR™

A technical note on varistors by Nippon Chemi-Con Corporation. Link here (PDF) A varistor has the volt-ampere characteristics in which current suddenly starts to flow through the device at a certain voltage. Varistors are used to protect semiconductor devices in electronic and electric circuits from overvoltage. They are inserted in parallel with a circuit to […]