The 50S-1634+XX from JFW Industries is an SP6T Electromechanical Coaxial Switch that operates from DC to 40 GHz. It has an insertion loss of less than 1 dB and provides isolation of over 70 dB. This normally open reflective switch can handle up to 40 Watts of average input power and has a switching speed of up to 20 ms. It is available in a module with 2.9 mm Female connectors.
