Resistance alloy for use in shunt resistor, use of resistance alloy in shunt resistor, and shunt resistor using resistance alloy
AssigneeKoa Corporation
InventorsYoshitaka Kumeda, Tadahiko Yoshioka
Life of this patent
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Abstract
Provided is a current detection resistor, such as a shunt resistor, wherein a. low specific resistance and a small thermal electromotive force with respect to copper are achieved, while maintaining a low TCR. A resistance alloy for use in a current detection shunt resistor includes 4.5 to 5.5 mass % of manganese, 0.05 to 0.30 mass % of silicon, 0.10 to 0.30 mass % of iron, and a balance being copper, and has a specific resistance of 15 to 25 μΩ·m.
Claims5
A resistance alloy for use in a current detection shunt resistor, the resistance alloy being a quaternary alloy consisting of copper, manganese, silicon, and iron, and comprising 4.5 to 5.5 mass % of manganese, 0.05 to 0.30 mass % of silicon, 0.10 to 0.30 mass % of iron, and a balance being copper, and having a specific resistance of 15 to 25 μΩ·cm,
- wherein a silicon oxide is formed on a surface of the resistance alloy.
A current detection shunt resistor comprising a resistive body and an electrode,
- wherein the resistive body is a quaternary alloy consisting of copper, manganese, silicon, and iron, and comprising 4.5 to 5.5 mass % of manganese, 0.05 to 0.30 mass % of silicon, 0.10 to 0.30 mass % of iron, and a balance being copper, and having a specific resistance of 15 to 25 μΩ·cm, and
- wherein a silicon oxide is formed on a surface of the resistive body.
Dependencies are inferred from the claim text.