COPPER ALLOY WIRE ROD AND METHOD FOR PRODUCING COPPER ALLOY WIRE ROD

A copper alloy wire rod containing Ag: 0.5 wt% or more and 6 wt% or less and the balance including inevitable impurities and Cu, in which, on a cross section parallel to a longitudinal direction of the copper alloy wire rod, within a range observed with a visual field of 1.7 µm in a direction perpendicular to the longitudinal direction and 2.3 µm in a direction parallel to the longitudinal direction, the copper alloy wire rod has at least one rectangular range that is a rectangular range having a width perpendicular to the longitudinal direction of 0.2 µm and a length parallel to the longitudinal direction of 2.3 µm and entirely includes five or more second phase particles containing Ag and having a maximum length in the longitudinal direction of less than 300 nm.