Importance

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Abstract

A resistor assembly, comprising: a first housing portion, the first housing portion having a receiving area on one side of the first housing portion; a trim resistor element disposed in the receiving area, the trim resistor element comprising a non-conductive substrate, a trimable resistive film disposed on a surface of the non-conductive substrate, a pair of conductive areas each being disposed on the non-conductive substrate in a discrete location, each one of the pair of conductive areas being in electrical contact with separate portions of the trimable resistive film, wherein a conductive path between the pair of conductive areas is defined by the trimable resistive film; a pair of lead wires, one of the pair of lead wires being electrically terminated with one of the pair of conductive areas and the other one of the pair of lead wires being secured to the other one of the pair of conductive areas; and a second housing portion, the second housing portion having a first access opening and a second access opening, the second housing portion being disposed over the receiving area after the trim resistor element has been located therein, wherein the first access opening is located over a portion of the pair of conductive areas and a portion of the pair of lead wires electrically terminated to the portion of the conductive areas, wherein a first sealing compound is disposed in the first access opening to cover the portion of the conductive areas and the portion of the pair of lead wires located in the first access opening, and the second access opening is located over the trimable resistive film, wherein a second sealing compound is disposed in the second access opening after a portion of the trimable resistive film is removed to provide a desired resistance between the pair of conductive areas.

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First Claim