PTC thermistor device with PTC thermistor unit housed in case

Details PTC thermistor device with PTC thermistor unit housed in case PTC thermistor device with PTC thermistor unit housed in case

1989-02-24

1990-07-03

Miller, Jr., George H.

Electrical resistors

Resistance value responsive to a condition

Current and/or voltage

338220, H01C 710

Patent

active

049394983

ABSTRACT:
A PTC thermistor device includes a case in which a holding plate made of metallic material is vertically arranged; and on each of both main surfaces of the holding plate, an electrode from a respective one of two PTC thermistor units is fixed. Therefore, the two PTC thermistor units are thermally coupled with each other through the holding plate. A terminal is integrally formed at the lower end of the holding plate, which is exposed outside the case. A throughhole for reducing an area of a section of a heat conduction path from the holding plate to the terminal is formed in the heat conduction path.

REFERENCES:
patent: 3878501 (1975-04-01), Moorhead et al.
patent: 3914727 (1975-10-01), Fabricius
patent: 4401885 (1983-08-01), Ishii et al.
patent: 4431983 (1984-02-01), Rodriguez
patent: 4482801 (1984-11-01), Habata et al.

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