The 3A2NHY-S from Renaissance Electronics Corporation is a Space Qualified Circulator with Frequency 600 to 900 MHz, Average Power Forward 2 W, Insertion Loss 0.5 dB, Isolation 16 dB, Operating Temperature -40 to 85 Degree C. Tags: Module with Connectors, Coaxial Circulator. More details for 3A2NHY-S can be seen below.