The RFLC090M20M25 from RF-Lambda is a Space Qualified Circulator with Frequency 200 to 250 MHz, Bandwidth 50 MHz, Average Power Forward 50 W, Insertion Loss 0.4 to 0.6 dB, Isolation 19 to 20 dB. Tags: Module with Connector, Coaxial Circulator. More details for RFLC090M20M25 can be seen below.