The C1EC1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.61 to 1.63 GHz, Average Power 80 to 250 W, Average Power Forward 80 to 250 W, Insertion Loss 0.2 dB, Isolation 34 dB. Tags: Drop-In, Drop-In Isolator. More details for C1EC1 can be seen below.