The JIM1550T1600S1R from JQL Electronics is a RF & Microwave Isolator with Frequency 1.55 to 1.6 GHz, Average Power Forward 30 W, Average Power Reverse 5 W, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Surface Mount, Surface Mount Isolator. More details for JIM1550T1600S1R can be seen below.