The 3SMH5NA from Renaissance Electronics Corporation is a RF & Microwave Circulator with Frequency 3.45 to 3.65 GHz, Average Power Forward 10 W, Insertion Loss 0.06 to 0.8 dB, Isolation 20 dB, Operating Temperature -40 to 85 Degree C. Tags: Surface Mount Circulator. More details for 3SMH5NA can be seen below.