Voltage-dependent resistor

Details Voltage-dependent resistor Voltage-dependent resistor

1976-08-04

1977-11-29

Padgett, Benjamin R.

Stock material or miscellaneous articles

Composite

Of quartz or glass

427101, 252514, 252518, 252519, H01B 102, H01B 108

Patent

active

040606619

ABSTRACT:
There is provided a voltage-dependent resistor comprising a bulk consisting essentially of zinc oxide as the major part and as additives 0.01 to 10 mol % of Bi.sub.2 O.sub.3, CoO, MnO, TiO and NiO and electrodes on the bulk, said electrodes having been formed by baking a silver paste comprising silver powder and a glass frit on the bulk, said glass frit containing as its principal content 80 to 95% by weight of Bi.sub.2 O.sub.3 and correspondingly 20 to 5% by weight of SiO.sub.2, said glass frit also containing 1 to 5 parts by weight of B.sub.2 O.sub.3 for 100 parts of said principal content. The electrodes can also contain minor amounts of CoO, Sb.sub.2 O.sub.3, a mixture of Sb.sub.2 O.sub.3 with Ag.sub.2 O or MgO, or a mixture of CoO with MgO or Ag.sub.2 O.

REFERENCES:
patent: 2633521 (1953-03-01), Becker et al.
patent: 3766098 (1973-10-01), Masuyama et al.
patent: 3905006 (1975-09-01), Matsuoka et al.
patent: 3938069 (1976-02-01), May

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