A conductor having a conductive terminal; an intermediate insulator housing the terminal; an outer conductor part that is an integrated molded product formed from a conductive metal plate housing the intermediate insulator; and a housing formed from an insulating material, which housing houses the outer conductor part; wherein the outer conductor part includes: a cylindrical main body part formed from a curved plate, a plate-like rear plate part electrically connected to a rear end of the main body part, which rear plate part closes the rear end of the main body part; and left and right leg parts extending downward from a cylindrical wall of the main body part, the rear plate part includes left and right anchor parts extending forward from left and right ends of the rear plate part, the housing includes slit-shaped left and right anchor housing parts extending forward, and the outer conductor part is housed in the housing, and each anchor part is inserted into and retained by a corresponding anchor housing part.