Self heat generation type positive characteristic thermistor and

Details Self heat generation type positive characteristic thermistor and Self heat generation type positive characteristic thermistor and

1979-05-10

1981-03-31

Albritton, C. L.

Electrical resistors

Resistance value responsive to a condition

Current and/or voltage

29612, 338314, H01C 702

Patent

active

042596572

ABSTRACT:
A self heat generation type positive characteristic thermistor and a manufacturing method thereof. The thermistor is made of more than three layers of positive characteristic thermistor element bodies, such that the specific resistance of the layer situated nearer the surface in the direction of element thickness perpendicular to electrodes is higher. According to this invention a positive characteristic thermistor which generates heat instantaneously when a large current is flown therethrough and has excellent thermal shock proof properties can be obtained simply. The thermistor is well suited to mass production and the use of the thermistor can be extended to many fields.

REFERENCES:
patent: 2769071 (1956-10-01), Ward
patent: 3644864 (1972-02-01), Hirsbrunner et al.
patent: 3683469 (1972-08-01), Capek et al.
patent: 3958208 (1976-05-01), Blaha
patent: 4163769 (1979-08-01), Pope et al.

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