The RFLC-601-7K from RF-Lambda is a RF & Microwave Circulator with Frequency 11 to 18 GHz, Average Power Forward 200 W, Peak Power 2000 W, Insertion Loss 0.9 dB, Isolation 20 dB. Tags: Coaxial Circulator. More details for RFLC-601-7K can be seen below.