The RFLC101M10M20 from RF-Lambda is a Space Qualified Circulator with Frequency 100 to 200 MHz, Bandwidth 100 MHz, Average Power Forward 50 W, Insertion Loss 1.45 to 1.5 dB, Isolation 14 to 15 dB. Tags: Module with Connector, Coaxial Circulator. More details for RFLC101M10M20 can be seen below.