Disc varistor and method of manufacturing the same

Details Disc varistor and method of manufacturing the same Disc varistor and method of manufacturing the same

2005-06-09

2009-11-03

Lee, Kyung (Department: 2833)

Electrical resistors

Resistance value responsive to a condition

Current and/or voltage

C338S021000, C338S325000, C361S820000, C361S767000, C174S526000

Reexamination Certificate

active

07612648

ABSTRACT:
Disclosed herein are a disc varistor having a capability to absorb a double amount of surge and a method of manufacturing the varistor. The varistor includes a disc-shaped first ceramic body having first and second electrodes on opposite surfaces thereof, and a disc-shaped second ceramic body having third and fourth electrodes on opposite surfaces thereof. A first lead wire is in interposed between the second and third electrodes and electrically connected to the second and third electrodes. The varistor also includes a second lead wire. The second lead wire has a body portion electrically connected to the first electrode of the first ceramic body, a first extension extending from the body portion to the second ceramic body, and a second extension extending from the first extension to the fourth electrode.

REFERENCES:
patent: 4975674 (1990-12-01), Sumiyoshi et al.
patent: 5425099 (1995-06-01), Takakura et al.
patent: 5781394 (1998-07-01), Lorenz et al.
patent: 6211770 (2001-04-01), Coyle
patent: 6252493 (2001-06-01), Gunchenko
patent: 6388555 (2002-05-01), McLoughlin
patent: 10-1999-001961 (1999-01-01), None
patent: 10-2000-0009936 (2000-02-01), None

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