A high frequency R-F switch includes a switch body of housing made from a conductive material or a non-conductive resin having a conductive layer plated on the body surfaces. The switching device includes a first external connector, a first conductor having a switching contact member connected to the first external connector for switching a connection with the switch contact member. A conductive housing .[.supports.]. .Iadd.houses .Iaddend.the first conductor, .Iadd.and connects to .Iaddend.a second external connector and second conductor. The switch body or housing is in electrical connection with the second external conductor.