The UIYBDC1920C from UIY Inc. is a RF & Microwave Circulator with Frequency 1.2 to 18 GHz, Average Power Forward 30 W, Average Power Reverse 30 W, Insertion Loss 0.6 dB, Isolation 17 dB. Tags: Drop-in Circulator. More details for UIYBDC1920C can be seen below.