The T1YA1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.62 to 1.66 GHz, Average Power 40 W, Average Power Forward 40 W, Insertion Loss 0.35 dB, Isolation 20 dB. Tags: Drop-In, Drop-In Isolator. More details for T1YA1 can be seen below.