The T1YU1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1 to 2 GHz, Average Power 1 W, Average Power Forward 1 W, Insertion Loss 0.6 dB, Isolation 18 dB. Tags: Module with Connectors, Coaxial Isolator. More details for T1YU1 can be seen below.