High frequency relay
29 April 2009
Switches, Relays & Keypads
Fujitsu has released a new ultra miniature high frequency relay in the form of the FTR-B3-RF. The metal shield around the relay reduces the loss of RF signals and its effect on other components on the board, while at the same time protecting the relay from unwanted signal radiation from outside.
The FTR-B3-RF features excellent high frequency characteristics up to 1 GHz, such as better than 30 dB isolation, insertion loss less than 0,2 dB and VSWR lower than 1,2. These characteristics make the relay well suited to low signal switching applications such as measuring and medical equipment.
The relay features a 2 form C contact utilising highly reliable bifurcated contacts. It has surface mounted terminals and measures just 6,7 mm in height with a 97 mm² mounting area. RF switching power is 3 W at 1 GHz and RF carrying power is 1 W at 1 GHz. The standard type has a power consumption of 140 mW (230 mW at 24 V), while the latching type offers a power consumption of 100 mW (120 mW at 24 V).
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