The JIM5400T5900VM1R from JQL Electronics is a RF & Microwave Isolator with Frequency 5.4 to 5.9 GHz, Average Power Forward 5 W, Average Power Reverse 5 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Surface Mount, Surface Mount Isolator. More details for JIM5400T5900VM1R can be seen below.