The C3YM1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 3.4 to 3.7 GHz, Average Power 1 W, Average Power Forward 1 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Microstrip, Microstrip Isolator. More details for C3YM1 can be seen below.