The DBCL2004400585A from Qotana is a RF & Microwave Circulator with Frequency 4.4 to 5.85 GHz, Average Power Forward 50 W, Average Power Reverse 50 W, Insertion Loss 0.35 to 0.40 dB, Isolation 20 to 21 dB. Tags: Coaxial Circulator. More details for DBCL2004400585A can be seen below.