Process for making a voltage dependent resistor

Details Process for making a voltage dependent resistor Process for making a voltage dependent resistor

1974-10-16

1976-06-08

Padgett, Benjamin R.

Compositions

Electrically conductive or emissive compositions

Radioactive material containing

252518, 252519, 252520, 252521, H01B 108

Patent

active

039621448

ABSTRACT:
A process for making a bulk-type voltage-dependent resistor and more particularly to a varistor comprising a zinc oxide sintered body using heat-treated zinc oxide powder. By heat-treating zinc oxide powder before the sintering step, a bulk-type voltage-dependent resistor is obtainable which is characterized by a high n-value in a region of current higher than 10A/cm.sup.2 and high power dissipation as well as a lower C-value.

REFERENCES:
patent: 3663458 (1972-05-01), Masuyama et al.
patent: 3764566 (1973-10-01), Matsuoka et al.
patent: 3903226 (1975-09-01), Iga et al.

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