The S 395 SMICW from Southern Microwave Inc is a RF & Microwave Isolator with Frequency 3.7 to 4.2 GHz, Average Power Forward 100 W, Average Power Reverse 20 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Surface Mount, Surface Mount Isolator. More details for S 395 SMICW can be seen below.