Zinc oxide voltage-nonlinear resistor

摘要

A voltage-dependent resistor (varistor) of the bulk type comprising a sintered body consisting essentially of, as a main constituent, ZnO and additives of various metal oxides and further containing an additive of at least one of Al2O3, In2O3 Ga2O3 provide much improved characteristics, especially superior limiting voltage ratio, surge resistance and life of the varistor.