The C1620/S*A from Smiths Interconnect is a RF & Microwave Circulator with Frequency 1.65 to 2 GHz, Average Power Forward 100 W, Peak Power 1000 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Drop-in Circulator. More details for C1620/S*A can be seen below.