The UIYCDC9648A from UIY Inc. is a RF & Microwave Circulator with Frequency 250 MHz to 1 GHz, Average Power Forward 400 W, Average Power Reverse 400 W, Insertion Loss 0.6 dB, Isolation 50 dB. Tags: Coaxial Circulator. More details for UIYCDC9648A can be seen below.