The UIYBCC2122A from UIY Inc. is a RF & Microwave Circulator with Frequency 400 MHz to 8 GHz, Average Power Forward 100 W, Average Power Reverse 100 W, Insertion Loss 0.5 dB, Isolation 18 dB. Tags: Coaxial Circulator. More details for UIYBCC2122A can be seen below.