An improved high frequency connector, comprising: an insulative housing, comprising an upper insulating case having an opening portion which receives a center conductor of a mating connector, and a lower insulating case having a central cavity; a shield, covering the housing to be connected electrically to an outer conductor of the mating connector; a first terminal, including a first welding leg used to be soldered on a conductor of a circuit board, a first fixed portion extending from said first welding leg and molded into said insulative housing by insert-molding process, and a first contact portion cantilevered flexible, extending from said first fixed portion and mounted in the central cavity of the insulative housing; a second terminal including a second welding leg used to be soldered on a conductor of a circuit board; a second fixed portion extending from said second welding leg and molded into said insulative housing by insert-molding process, and a second contact portion extending from said second fixed portion and mounted in the central cavity of the insulative housing; the first and second terminals (30, 40) define a switch and securely contact with each other inside the central cavity in a normal position; wherein the second contact portion, shaped in a semi-enclosure construction is formed by scrapless puncturing and bending stamping process from the second fixed portion on the base of a metal sheet, the connector is characterized in that the resulted second contact portion is uniform in width with the end of the second fixed portion before being punched and bent to form a contact area, and blocking means comprising a convex portion on the first fixed portion for blocking melting solder and/or flux from flowing to the first contact portion when soldering the connector onto the circuit board. an insulative housing, comprising an upper insulating case having an opening portion which receives a center conductor of a mating connector, and a lower insulating case having a central cavity; a shield, covering the housing to be connected electrically to an outer conductor of the mating connector; a first terminal, including a first welding leg used to be soldered on a conductor of a circuit board, a first fixed portion extending from said first welding leg and molded into said insulative housing by insert-molding process, and a first contact portion cantilevered flexible, extending from said first fixed portion and mounted in the central cavity of the insulative housing; a second terminal including a second welding leg used to be soldered on a conductor of a circuit board; a second fixed portion extending from said second welding leg and molded into said insulative housing by insert-molding process, and a second contact portion extending from said second fixed portion and mounted in the central cavity of the insulative housing; the first and second terminals (30, 40) define a switch and securely contact with each other inside the central cavity in a normal position; wherein the second contact portion, shaped in a semi-enclosure construction is formed by scrapless puncturing and bending stamping process from the second fixed portion on the base of a metal sheet, the connector is characterized in that the resulted second contact portion is uniform in width with the end of the second fixed portion before being punched and bent to form a contact area, and blocking means comprising a convex portion on the first fixed portion for blocking melting solder and/or flux from flowing to the first contact portion when soldering the connector onto the circuit board.