Spark plug having a recess formed in an electrode

Electronic apparatus and overvoltage protection structure thereof

Krypton-85-free spark gap with photo-emission

Triggering circuit of the overvoltage protection

Barrier discharge ignition apparatus for internal combustion engine

Spark gap arrangement comprising two preferably flat, opposing electrodes that are held apart in a housing body

Discharge element and method of manufacturing the same

Device and method for circuit protection

Adjustable arc electrode assembly and method of assembling

Electrode and plasma gun configuration for use with a circuit protection device

System and apparatus for circuit protection within an equipment enclosure

Arc containment device and method

Surface mounting discharge tube has soldering tapers formed at peripheral edges of electrode side surfaces that seal and project outwardly from opposite ends of cylindrical ceramic envelope

Discharge device for inductive devices

Switchable lightning arrester system

Self-adjusting gap system for space charging mitigation and monitoring

Series static spark gap for EMP protection

Spark gap with triple-point electron emission prompting