Zinc oxide varistors and/or resistors

Details Zinc oxide varistors and/or resistors Zinc oxide varistors and/or resistors

1991-08-02

1993-07-27

Lateef, Marvin M.

Electrical resistors

Resistance value responsive to a condition

Current and/or voltage

338223, 338224, 252518, H01C 710, H01C 1016

Patent

active

052313700

ABSTRACT:
Varistors and/or resistors that includes doped zinc oxide gel microspheres. The doped zinc oxide gel microspheres preferably have from about 60 to about 95% by weight zinc oxide and from about 5 to about 40% by weight dopants based on the weight of the zinc oxide. The dopants are a plurality of dopants selected from silver salts, boron oxide, silicon oxide and hydrons oxides of aluminum, bismuth, cobalt, chromium, manganese, nickel, and antimony.

REFERENCES:
patent: 3685026 (1972-08-01), Wakabayashi et al.
patent: 4510112 (1985-04-01), Lauf
patent: 4977357 (1990-12-01), Shrier
patent: 4992333 (1991-02-01), Hyatt
patent: 4996510 (1991-02-01), Beeker et al.
patent: 5062993 (1991-11-01), Arnold, Jr. et al.

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