The C5BQ1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 5.1 to 5.9 GHz, Average Power 2 W, Average Power Forward 2 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Microstrip, Microstrip Isolator. More details for C5BQ1 can be seen below.