COPPER ALLOY FOR ELECTRONIC/ELECTRICAL DEVICE, COPPER ALLOY THIN SHEET FOR ELECTRONIC/ELECTRICAL DEVICE, CONDUCTIVE COMPONENT FOR ELECTRONIC/ELECTRICAL DEVICE AND TERMINAL

摘要

PROBLEM TO BE SOLVED: To provide a copper alloy for an electronic/electrical device that is excellent in resistance property to stress relaxation and balance of proof stress and bending, has excellent bending workability even for bending so that a bending axis extends in a direction perpendicular to a rolling direction, and is suitable for a conductive component for an electronic/electrical device.SOLUTION: A copper alloy for an electronic/electrical device contains more than 2.0 mass% and 15.0 mass% or less of Zn, 0.10 mass% or more and 0.90 mass% or less of Sn, 0.05 mass% or more and less than 1.00 mass% of Ni, 0.001 mass% or more and less than 0.100 mass% of Fe and 0.005 mass% or more and 0.100 mass% or less of P, and the balance is composed of Cu and inevitable impurities. The copper alloy satisfies 0.002≤Fe/Ni<1.500, 3.0<(Ni+Fe)/P<100.0 and 0.10