The T1YN5 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.47 to 1.52 GHz, Average Power 25 W, Average Power Forward 25 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Module with Connectors, Coaxial Isolator. More details for T1YN5 can be seen below.