The T5YF1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 5.3 to 10.6 GHz, Average Power 2 W, Average Power Forward 2 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Drop-In, Drop-In Isolator. More details for T5YF1 can be seen below.