The RFLC270G31G36 from RF-Lambda is a RF & Microwave Circulator with Frequency 3.15 to 3.66 GHz, Average Power Forward 500 W, Insertion Loss 0.5 dB, Isolation 20 dB, Operating Temperature -20 to 70 Degree C. Tags: Coaxial Circulator. More details for RFLC270G31G36 can be seen below.