Stable high voltage dc varistor

Details Stable high voltage dc varistor Stable high voltage dc varistor

H - Electricity

01

L

356/114, 338/16

H01L 45/00 (2006.01) H01C 7/102 (2006.01)

Patent

CA 1186760

STABLE HIGH VOLTAGE DC VARISTOR ABSTRACT OF THE DISCLOSURE A high voltage varistor for DC operation is manufactured by applying a glass collar to the perimeter of a sintered zinc oxide disc and heat treated between about 750°C and 400°C for several cycles in air. After heat treating, an organic resin or ceramic coating is applied to the glass collar to further insulate the varistor for high voltage application.

388033

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