A stator according to an aspect of the present disclosure includes a connector molding portion including a base portion and a mounting portion and a receiver side terminal. The connector molding portion is provided with a communication hole which includes a first concave portion including an inner opening inside a housing extending through the base portion in an X direction and a second concave portion including a bottom surface opening on a bottom surface of the mounting portion extending through the base portion in a Y direction and communicates the inside and outside of the housing through the first concave portion and the second concave portion. The first concave portion penetrates the base portion in the X direction through an outer opening. A rear surface covering portion is provided to close the outer opening.