The UIYBCC7272A from UIY Inc. is a RF & Microwave Circulator with Frequency 80 MHz to 2 GHz, Average Power Forward 300 W, Average Power Reverse 300 W, Insertion Loss 1.3 dB, Isolation 13 dB. Tags: Coaxial Circulator. More details for UIYBCC7272A can be seen below.