A connector includes a plurality of terminal units. The terminal unit includes a terminal main body, a plug cap having the terminal main body inserted therein, fitted with a counterpart connector, and formed in a cylindrical shape, and a contact passing between the terminal main body and the plug cap. The contact includes a first connecting portion having a first abutting portion abutting on an outer circumferential surface of the terminal main body and a second connecting portion having a second abutting portion abutting on an inner circumferential surface of the plug cap. At least either the first connecting portion or the second connecting portion is a spring member movably biasing the plug cap in a perpendicular direction to a fitting direction with the counterpart connector in a state in which electric connection to the terminal main body is maintained.