Monolithic varistor

摘要

A monolithic varistor includes a sintered layered body and a pair of external electrodes disposed on opposite ends of the layered body. The layered body is composed of a plurality of varistor sheets and a plurality of valistor electrodes, which are layered on one another and integrally fired. T is defined as the distance between the varistor electrodes, and Ty is defined as the distance between an outermost varistor electrode and the upper surface of the sintered layered body. Further, Tx is defined as the distance between the external electrodes and the corresponding edges of the varistor electrodes. The varistor is designed in order to satisfy one of the following three conditions:Condition (A) 1.5<=(Tx/T)<=3.0Condition (B) (Ty/T)>=1.0Condition (C) 1.5<=(Tx/T)<=3.0 and (Ty/T)>=1.0