The T1YE1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.6 to 1.8 GHz, Average Power 1 to 10 W, Average Power Forward 1 to 10 W, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Drop-In, Drop-In Isolator. More details for T1YE1 can be seen below.