High power resistor

Details High power resistor High power resistor

1998-12-21

1999-08-31

Gellner, Michael L.

Electrical resistors

With heat dissipating projections

338 52, 338 60, 338313, 338309, H01C 108

Patent

active

059459050

ABSTRACT:
A high power resistor includes a substrate of an insulating material having opposed first and second surfaces, and a strip of a resistance material on the first surface of the substrate. The resistance strip has side edges which are spaced from the side edges of the substrate. A contact of a conductive material is at each end of the resistance strip. Each contact extends to a separate end of the substrate, across the end and over a portion of the second surface of the substrate. The portions of the contacts which are on the second surface of the substrate or no longer than the portions of the contacts on the first surface of the substrate. At least one heat sink strip of a conductive material is on the second surface of the substrate. The heat sink strip is of a size that it does not overlap the resistance strip so as to minimize any capacitance between the heat sink strip and the resistance strip.

REFERENCES:
patent: 3694786 (1972-09-01), Rosema et al.
patent: 5179366 (1993-01-01), Wagner
patent: 5304977 (1994-04-01), Caddock, Jr.
patent: 5621378 (1997-04-01), Caddock, Jr. et al.
patent: 5739743 (1998-04-01), Mazzochette

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