The RFLC-601-5 from RF-Lambda is a RF & Microwave Circulator with Frequency 12 to 18 GHz, Bandwidth 1000 MHz, Average Power Forward 10 W, Insertion Loss 0.4 dB, Isolation 19 dB. Tags: Coaxial Circulator. More details for RFLC-601-5 can be seen below.