The JIS30K5T31K3G0 from JQL Electronics is a RF & Microwave Isolator with Frequency 30.5 to 31.3 GHz, Average Power Forward 0.5 W, Average Power Reverse 0.5 W, Insertion Loss 1 dB, Isolation 18 dB. Tags: Microstrip, Microstrip Isolator. More details for JIS30K5T31K3G0 can be seen below.