The RC2528BN-018022 from ZTS Technologies is a RF & Microwave Circulator with Frequency 1.8 to 2.2 GHz, Average Power Forward 100 W, Insertion Loss 0.5 dB, Isolation 19 dB, Operating Temperature -10 to 60 Degree C. Tags: Module with Connectors, Coaxial Circulator. More details for RC2528BN-018022 can be seen below.