Variable chip resistor
AssigneeRohm Co., Ltd.
InventorTorayuki Tsukada
Life of this patent
Estimating the term…
Abstract
A variable chip resistor (1) of the present invention includes a resistor element (2) made of a metal plate which is in the form of a chip and has a predetermined specific resistance. Terminal electrodes (3, 4) for soldering are provided at both ends of the resistor element (2), and at least one adjustment hole (9) is formed in the resistor element (2) at a portion between the terminal electrodes (3, 4). An adjustment rod (10) is inserted into the adjustment hole (9) in close contact with the inner surface of the adjustment hole. The adjustment rod (10) is made of an electroconductive material, and its insertion depth is adjustable in the axial direction of the adjustment hole (9).
Claims5
A variable chip resistor comprising:
- a chip-shaped resistor element made of a metal plate having a predetermined specific resistance, the resistor element including two ends used as terminal electrodes for soldering;
- at least one adjustment hole formed in the resistor element at a portion between the terminal electrodes;
- and
- an electroconductive adjustment rod inserted into the adjustment hole in close contact with an inner surface of the adjustment hole, the adjustment rod being variable in insertion depth in an axial direction of the adjustment hole;
- wherein the adjustment hole is provided at a burring portion formed by deforming part of the resistor element into a cylindrical protrusion.
Dependencies are inferred from the claim text.