The S 290 DDJICW from Southern Microwave Inc is a RF & Microwave Circulator with Frequency 2.7 to 3.1 GHz, Average Power Forward 100 W, Average Power Reverse 100 W, Insertion Loss 0.8 dB, Isolation 40 dB. Tags: Drop-in Circulator. More details for S 290 DDJICW can be seen below.