The UIYBCC1215A from UIY Inc. is a RF & Microwave Circulator with Frequency 1.2 to 18 GHz, Average Power Forward 50 W, Average Power Reverse 50 W, Insertion Loss 0.6 dB, Isolation 18 dB. Tags: Coaxial Circulator. More details for UIYBCC1215A can be seen below.