Surface mounted four terminal resistor

Details Surface mounted four terminal resistor Surface mounted four terminal resistor

2007-05-29

2007-05-29

Lee, K. (Department: 2832)

Electrical resistors

With base extending along resistance element

Resistance element coated on base

C338S020000, C338S320000, C338S328000, C338S330000, C219S216000, C219S539000

Reissue Patent

active

09568937

ABSTRACT:
An electrical resistor has a surface mounted four terminal current sensor of a very low resistance value and capable of handling short pulses of high power. It comprises a flat metal late, 1 to 50 mils thick, of an alloy of high electrical resistivity, to which are welded, on two opposite sides, two flat metal plates of very high electrical conductivity which serve as terminations for electrical interconnection. A slot is cut, from the outside edge toward the center, into each of the two termination plates which divides them into a wide pad for connection of current carrying wires and a narrow one for voltage sensing. The depth of the slots is optimized to get the best stability of resistance readings with changing ambient temperature and under influence of the self-heating effect.

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patent: 5548269 (1996-08-01), Katsuno et al.
patent: 5667712 (1997-09-01), Sutorius et al.
patent: 5815065 (1998-09-01), Hanamura
patent: 6401329 (2002-06-01), Smejkal et al.

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