The T1EJ3 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.93 to 1.99 GHz, Average Power 60 W, Average Power Forward 60 W, Peak Power 200 W, Insertion Loss 0.2 dB. Tags: Module with Connectors, Coaxial Isolator. More details for T1EJ3 can be seen below.