The T8YJ1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 8.2 to 16.2 GHz, Average Power 1 W, Average Power Forward 1 W, Insertion Loss 0.6 dB, Isolation 16 dB. Tags: Module with Connectors, Coaxial Isolator. More details for T8YJ1 can be seen below.