Zinc oxide voltage-nonlinear resistor

Details Zinc oxide voltage-nonlinear resistor Zinc oxide voltage-nonlinear resistor

1975-10-10

1977-08-30

Lovering, Richard D.

Compositions

Electrically conductive or emissive compositions

Radioactive material containing

252518, 252519, 252521, H01B 100

Patent

active

040453740

ABSTRACT:
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 Al.sub.2 O.sub.3, In.sub.2 O.sub.3 Ga.sub.2 O.sub.3 provide much improved characteristics, especially superior limiting voltage ratio, surge resistance and life of the varistor.

REFERENCES:
patent: 3538022 (1970-11-01), Bowman
patent: 3598763 (1971-08-01), Matsuoka et al.
patent: 3663458 (1972-05-01), Masuyama et al.

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