Copper alloy sheet for electric and electronic part

摘要

The present invention relates to a copper alloy sheet for an electric and electronic part comprising:
Fe 0.01 to 0.50%; and
P 0.01 to 0.15%, respectively, wherein the copper alloy sheet has an improved softening resistance by provided with an microstructure in which a ratio (I(200)/I(220)) of the intensity (I(200)) of diffraction of the (200) plane in the sheet surface, to intensity (I(220)) of diffraction of the (220) plane, is 0.3 or less.