The T17H1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 17.7 to 19.7 GHz, Average Power 0.2 W, Average Power Forward 0.2 W, Insertion Loss 0.5 dB, Isolation 18 dB. Tags: Microstrip, Microstrip Isolator. More details for T17H1 can be seen below.