The DBCL2300500055A from Qotana is a RF & Microwave Circulator with Frequency 500 to 550 MHz, Average Power Forward 100 W, Insertion Loss 0.15 to 0.20 dB, Isolation 23 to 24 dB, Operating Temperature -20 to 70 Degree C. Tags: Coaxial Circulator. More details for DBCL2300500055A can be seen below.