Abstract: An electrical connector having contact elements, for mounting a leadless circuit board to a mother board. Each contact element is provided with a projection laterally projecting therefrom which engages with the lower opening edge of a through-hole of the mother board to maintain the connector in contact with the surface of the mother board. Connector apertures are arranged to a zigzag pattern to form first and second rows, and the contact elements are inserted in the apertures of the first and second rows with reversed orientation.

Abstract: A connector for connection of a coaxial cable comprises a cylindrical holder composed of a support member and a lid member of semi-cylindrical configurations made of insulator material, and a center contact stored and held in the front end portion of the cylindrical holder. One end of the coaxial cable is held in a cable holding section in the rear of the center contact, a core wire of the coaxial cable is connected to the center contact, a ferrule is disposed in an opening formed at the cable holding section, an exposed outer conductor portion of the coaxial cable is folded and disposed on the ferrule and connected electrically thereto, the cylindrical holder is fitted and inserted in a metallic cylindrical body, and the ferrule is elastically deformed thereby to electrically connect the cylindrical body and the outer conductor together.