A varistor and production method

摘要: A varistor has a disc (12) of ceramic material having opposed faces with face edges. There is an electrode (13) on each gap between and the edge face. Glass passivation (14) at least one in gap, not extending from to other around surface (12). Because only planar faces, it may be applied simple operation such as screen printing. Indeed, printing performed while discs are same nest plates used for paste. Even though does extend other, nevertheless breaks potentially conductive path electrodes caused by interaction encapsulant materials.