The JIC11K1T12K7SMSF1 from JQL Electronics is a RF & Microwave Isolator with Frequency 11.1 to 12.75 GHz, Average Power Forward 1 W, Average Power Reverse 1 W, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Module with Connector, Coaxial Isolator. More details for JIC11K1T12K7SMSF1 can be seen below.