The DBCL4502800340A from Qotana is a RF & Microwave Circulator with Frequency 2.8 to 3.4 GHz, Average Power Forward 50 W, Average Power Reverse 50 W, Insertion Loss 0.60 to 0.70 dB, Isolation 45 to 46 dB. Tags: Coaxial Circulator. More details for DBCL4502800340A can be seen below.