The 3G3NCB from Renaissance Electronics Corporation is a RF & Microwave Circulator with Frequency 1.62 to 1.67 GHz, Average Power Forward 100 W, Insertion Loss 0.25 dB, Isolation 20 dB, Operating Temperature -55 to 85 Degree C. Tags: Drop-in Circulator. More details for 3G3NCB can be seen below.