The RFLC101M40M60 from RF-Lambda is a Space Qualified Circulator with Frequency 400 to 600 MHz, Bandwidth 200 MHz, Average Power 50 W, Average Power Forward 50 W(Power Handling CW), Insertion Loss 0.90 dB. Tags: Module with Connector, Coaxial Circulator. More details for RFLC101M40M60 can be seen below.