The T15B3 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 15 to 18.2 GHz, Average Power 5 to 20 W, Average Power Forward 5 to 20 W, Insertion Loss 0.65 dB, Isolation 18 dB. Tags: Microstrip, Microstrip Isolator. More details for T15B3 can be seen below.