The present invention provides an electric type initiator which can secure a reliability in activation and can be easily manufactured. The electric type initiator is characterized by comprising a header portion formed by using a resin material, a pair of conductive pins having top portions going through the header portion and exposing from an end portion of the header portion, a bridge wire formed by using a conductive body bridging between the top portions of the conductive pins, and a priming arranged in contact with the bridge wire. And, the present invention provides an initiator assembly which can be easily manufactured with less steps of the manufacturing process and can further reduce a manufacturing cost. An initiator assembly including a priming for used in a motor vehicle comprising a priming, a conductive pin used for igniting the priming, and a collar member functioning as a fixing portion with respect to the inflator, wherein the conductive pin is arranged to go through the collar member, a molded member made of an insulating material is interposed between the collar member and the conductive pin, and the conductive pin, and the collar member and the molded member are integrally formed to constitute a base portion.