The JIM3600T3800S1R from JQL Electronics is a RF & Microwave Isolator with Frequency 3.6 to 3.8 GHz, Average Power Forward 60 W, Average Power Reverse 5 W, Insertion Loss 0.35 dB, Isolation 21 dB. Tags: Surface Mount, Surface Mount Isolator. More details for JIM3600T3800S1R can be seen below.