US 12,435,391 B2
Resistance alloy for use in shunt resistor, use of resistance alloy in shunt resistor, and shunt resistor using resistance alloy
Naoki Kanauchi, Nagano (JP); Yoshitaka Kumeda, Nagano (JP); and Tadahiko Yoshioka, Nagano (JP)
Assigned to KOA Corporation, Nagano (JP)
Appl. No. 18/019,755
Filed by KOA CORPORATION, Nagano (JP)
PCT Filed May 20, 2021, PCT No. PCT/JP2021/019160
§ 371(c)(1), (2) Date Feb. 3, 2023,
PCT Pub. No. WO2022/030071, PCT Pub. Date Feb. 10, 2022.
Claims priority of application No. 2020-134314 (JP), filed on Aug. 7, 2020.
Prior Publication US 2023/0287540 A1, Sep. 14, 2023
Int. Cl. C22C 9/05 (2006.01); H01C 7/00 (2006.01)
CPC C22C 9/05 (2013.01) [H01C 7/00 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A copper-manganese based resistance alloy for use in a shunt resistor, the resistance alloy comprising 9.5 to 12.5 mass % of manganese, 2.5 to 5 mass % of tin, 1 to 3 mass % of nickel, and a balance of the resistance alloy being copper,
wherein the resistance alloy has a TCR less than or equal to −36×10−6/K at 100° C. with reference to 25° C.