The RFLC202M13G18 from RF-Lambda is a RF & Microwave Circulator with Frequency 1.3 to 1.8 GHz, Average Power Forward 50 W, Insertion Loss 0.5 dB, Isolation 17 dB, Operating Temperature -20 to 70 Degree C. Tags: Coaxial Circulator. More details for RFLC202M13G18 can be seen below.