The UIYBDC3538E from UIY Inc. is a RF & Microwave Circulator with Frequency 1.225 to 1.875 GHz, Average Power Forward 300 W, Average Power Reverse 300 W, Insertion Loss 0.6 dB, Isolation 16 dB. Tags: Drop-in Circulator. More details for UIYBDC3538E can be seen below.