The RC1518CK-230250 from ZTS Technologies is a RF & Microwave Circulator with Frequency 23 to 25 GHz, Average Power Forward 30 W, Insertion Loss 0.5 dB, Isolation 18 dB, Operating Temperature -30 to 75 Degree C. Tags: Module with Connectors, Coaxial Circulator. More details for RC1518CK-230250 can be seen below.