Dow-Key's space-qualified WR-51 waveguide switch block (P/N 222D50600), offers a design with three R-switches integrated into one housing. Its maximum weight is 480 grams. DC characteristics include 25 - 35 V DC (28 V DC nominal), and operating current is 400 mA typical at 20°C. Equipped with a sequential latching actuator, this device switches in less than 500 ms.
Focusing on Ka-band applications, the WR-51 waveguide switch block supports redundancy systems for the new generation of multimedia communication satellites. Specifications for frequency range (GHz) 18.25 - 20.25 include: VSWR (max.) is 1.10:1; insertion loss (dB max.) is 0.08 per switch path; isolation (dB min.) is 50; and RF power, WCW is 100.