The IC 12,5 aat from TKI-Ferrit is a RF & Microwave Isolator with Frequency 10 to 15 GHz, Average Power Forward 5 W, Insertion Loss 0.35 to 0.5 dB, Isolation 20 to 24 dB, Operating Temperature -30 to 70 Degree C. Tags: Module with Connectors, Coaxial Isolator. More details for IC 12,5 aat can be seen below.