About Us

Dow-Key Microwave Corporation, the world’s largest manufacturer of electromechanical RF Switches and RF and Fiber Optic Switching Systems, is part of the Ceramic & Microwave Products (CMP), which is a subsidiary of Dover Corporation. As a leader in RF technology, Dow-Key offers high performance waveguide switches, coaxial switches, T-switches, Hi-rel switches, and switching systems such as integrated PXI modules, RF matrices (electromechanical, solid state and fiber optics), in addition to, custom switching designs and reliable solutions, as it is required in today’s fast paced communication industry.
Our products are used in a wide range of different markets, from commerical, military and to space, with applications in ATE, avionics, ground based, satellite communications, broadcasting, hi-rel, and many more. We are specialized in RF technology and custom switching needs.
Dow-Key Microwave is AS9100 / ISO-9001:2000 certified and is committed to provide unparalleled customer service, competitive pricing and on-time delivery. Founded in 1945, Dow-Key is the oldest continuously operational RF Relay manufacturer in the United States.