The COI06181511G from Cernex Inc is a RF & Microwave Isolator with Frequency 6 to 18 GHz, Average Power Forward 5 W, Insertion Loss 1.5 dB, Isolation 11 dB, Operating Temperature -30 to 70 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for COI06181511G can be seen below.