The 3SMC3NK-ROHS from Renaissance Electronics Corporation is a RF & Microwave Circulator with Frequency 1.55 to 1.65 GHz, Average Power Forward 10 W, Insertion Loss 0.5 dB, Isolation 20 dB, Operating Temperature -40 to 85 Degree C. Tags: Surface Mount Circulator. More details for 3SMC3NK-ROHS can be seen below.