Fitting-type connection terminal

摘要

There is disclosed a fitting-type connection terminal in which an insertion force for a terminal can be reduced while maintaining a stable contact resistance. If the thickness of a tin film on one of male and female terminals is 0.1 mu m to 0.3 mu m while the thickness of a tin film on the other terminal is not less than 0.1 mu m, the hardness of the terminal is increasingly influenced by the hardness of a base material (of copper or copper alloy) with the decrease of the thickness of the tin film, so that the apparent hardness of the terminal increases. As a result, the adhesion of the tin film is suppressed, and the terminal insertion force can be reduced at least by more than 10% as compared with a reference value (1.0 mu m for each of the male and female terminals). Particularly if the thickness of the tin film on the male terminal 10 is 0.1 mu m while the thickness of the tin film on the female terminal 20 is 0.3 mu m to 1.0 mu m, the insertion force can be reduced by more than 30%.