The CMC249270AS from 3Rwave is a RF & Microwave Circulator with Frequency 2.496 to 2.7 GHz, Average Power Forward 50 W, Insertion Loss 0.3 to 0.4 dB, Isolation 21 to 25 dB, Return Loss 21 to 25 dB. Tags: Coaxial Circulator. More details for CMC249270AS can be seen below.