The SMF635 -F0904 from Mercury Systems is a RF & Microwave Circulator with Frequency 9.7 to 11.7 GHz, Average Power 2 W, Average Power Forward 5 W, Average Power Reverse 0.5 W, Peak Power 20 W. Tags: Drop-in Circulator. More details for SMF635 -F0904 can be seen below.