The T1FY1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 2.5 to 2.686 GHz, Average Power 5 W, Average Power Forward 5 W, Insertion Loss 0.25 dB, Isolation 27 dB. Tags: Drop-In, Drop-In Isolator. More details for T1FY1 can be seen below.