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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