Varistor

Details Varistor Varistor

2011-08-09

2011-08-09

Harvey, James (Department: 2833)

Electrical resistors

Resistance value responsive to a condition

Current and/or voltage

C338S0220SD

Reexamination Certificate

active

07994894

ABSTRACT:
A varistor having a favorable heat-dissipating property is provided.In the varistor, a composite part having a favorable heat-dissipating property formed by a composite material composed of ZnO and Ag is arranged between main faces of a varistor matrix. Therefore, the heat transmitted from a semiconductor light-emitting device to a varistor part through an outer electrode can rapidly be transferred toward a main face on the opposite side through the composite part. In this varistor, side faces excluding inner side faces are exposed at side faces of the varistor matrix. Such a structure yields a favorable heat-dissipating property.

REFERENCES:
patent: 7696856 (2010-04-01), Saito et al.
patent: 7932806 (2011-04-01), Sato et al.
patent: 2007/0223170 (2007-09-01), Sato et al.
patent: 2008/0068124 (2008-03-01), Saito et al.
patent: 2010/0052841 (2010-03-01), Sato et al.
patent: 2010/0117782 (2010-05-01), Sato et al.
patent: A 8-246207 (1996-09-01), None

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