The IC 5.65 aat from TKI-Ferrit is a RF & Microwave Isolator with Frequency 5.3 to 6 GHz, Average Power Forward 5 W, Insertion Loss 0.5 dB, Isolation 25 dB, Operating Temperature -15 to 70 Degree C. Tags: Module with Connectors, Coaxial Isolator. More details for IC 5.65 aat can be seen below.