The CA31003500P3KS from Smiths Interconnect is a RF & Microwave Circulator with Frequency 3.1 to 3.5 GHz, Peak Power 3 kW, Insertion Loss 0.3 dB, Isolation 20 dB, Return Loss 19 dB. Tags: Module with Connector, Coaxial Circulator. More details for CA31003500P3KS can be seen below.