New 5 Million Life Cycle SPDT Terminated Switch

521U Switch PhotoVENTURA, Calif. (May 21, 2008) – Dow-Key is pleased to present its new line of SPDT terminated switches – the 521U Series Switches. The 521U Series is a break-before-make SPDT switch noted for its 5 Million actuation life cycle and for its various RF configuration options — unterminated 2/3 (DP3T) switch, 2W or 5W internal terminations, and 2W or 5W external terminations

The operational frequency range of the standard 521U switch is from DC to 18 GHz but can be extended to 26.5 GHz with the “K” option. The standard operating temperature of -25 °C to +65°C can be extend as well to -55 °C to +85°C with the “T” option.

The 521U switch is offered in failsafe, pulse latching, or latching self cutoff models and is available with active high or active low TTL operation. There is a choice of 12, 24, or 28 Vdc coil voltage with a maximum switching time of 15 mS. This unit comes with SMA RF connectors and optional indicator circuitry. For other available 521U designs (or 5 Million life cycle switches), please contact Dow-Key factory.

Product Drawing with Spec is provided upon request.

521U-Series Data Sheet

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Dow-Key Microwave Corporation, the world's largest manufacturer of electromechanical RF Switches and Switching Systems, is part of the Microwave Products Group (MPG), which is a subsidiary of Dover Corporation. We specialize in Coaxial Switches, Waveguide Switches, Space Qualified Switches, Electromechanical Switch Matrices, Solid State Switch Matrices, Fiber Optic Switch Matrices, Programmable Delay Lines and much more. Specializing in RF Matrix, Switch Matrix, and RF Switches.

As a leader in RF technology, Dow-Key offers high performance waveguide switches operating up to 70 GHz, coaxial switches operating up to 40 GHz, Hi-Rel switches such as SPDT, transfer switch, T-Switch, various waveguide switches and switching blocks, and switching systems such as SATCOM modules, RF matrices with individual switches, non-blocking crossbar, fan-in and fan-out modules, hybrid switching solution and much more (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 commercial, 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-9001:2008 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.

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