Thermistor apparatus and manufacturing method thereof

Details Thermistor apparatus and manufacturing method thereof Thermistor apparatus and manufacturing method thereof

1996-02-29

1998-08-25

Walberg, Teresa J.

Electrical resistors

Mechanically variable

Resistance value varied by removing or adding material

338 22R, 338 25, 29612, 296101, H01C 1000

Patent

active

057986851

ABSTRACT:
A positive-characteristics thermistor apparatus has an insulating case, positive-characteristics thermistor devices, planar terminals, and spring terminals. Whichever thermistor device has a lower resistance of the two thermistor devices is trimmed to have a higher resistance which is near the resistance of the other thermistor device such that the two thermistor devices have substantially the same resistance (for example, within a difference of .+-.1.OMEGA.). In other words, a part of an electrode of the thermistor device having a lower resistance is removed with a laser beam.

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Patent Abstracts of Japan, vol. 017, No. 353 (E-1393), 5 Jul. 1993 & JP 05 055006 A (NGK Spark Plug Co Ltd), 5 Mar. 1993 (English Language Abstract).

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