The UIYSC9A from UIY Inc. is a RF & Microwave Circulator with Frequency 8.7 to 10.5 GHz, Bandwidth 1800 MHz, Average Power Forward 10 W, Average Power Reverse 10 W, Insertion Loss 0.6 dB. Tags: Surface Mount, Surface Mount Circulator. More details for UIYSC9A can be seen below.