The UIYBCC3538D from UIY Inc. is a RF & Microwave Circulator with Frequency 100 MHz to 1.3 GHz, Average Power Forward 300 W, Average Power Reverse 300 W, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Coaxial Circulator. More details for UIYBCC3538D can be seen below.