Highly reliable terminal and connector with a compact low profile

Problem: To realize a connection with a counterpart connector with high spacing efficiency, and to stably maintain an electrically connected state while having a compact and low profile and without the terminal being deformed or damaged, even when subjected to a force from a counterpart terminal when mated with the counterpart terminal, which increases reliability. Solution: The terminal includes a substrate fixing part 52 fixed to a substrate 11, a pair of contact parts which sandwich a counterpart terminal 151, and an elastic deformation part having both ends connected to the substrate fixing part 52 and the contact parts, respectively, wherein a spring constant of the elastic deformation part is smaller than a spring constant of the contact parts.