The UIYDDC7038A from UIY Inc. is a RF & Microwave Circulator with Frequency 300 MHz to 1.3 GHz, Average Power Forward 300 W, Average Power Reverse 300 W, Insertion Loss 0.6 dB, Isolation 45 dB. Tags: Drop-in Circulator. More details for UIYDDC7038A can be seen below.