A press-fit connector terminal includes: a terminal body having a length sufficient to pass through an electrically conductive through-hole formed through a circuit substrate; and a contact unit arranged around the terminal body so as to surround therewith about a central axis of the terminal body, the contact unit being formed capable of expanding/contracting in a radial direction around the central axis. The contact unit has rigidity lower than that of the terminal body, the terminal body is made of material with electrical conductivity greater than that of the contact unit; and when the terminal body and the contact unit are integrally inserted into the through-hole, a gap exists between the terminal body and the contact unit so that the contact unit is movable relative to the terminal body in the radial direction within the through-hole.