The 2H5NAC from Renaissance Electronics Corporation is a RF & Microwave Isolator with Frequency 3.6 to 4.2 GHz, Average Power Forward 50 W, Average Power Reverse 10 W, Insertion Loss 0.5 dB, Isolation 18 dB. Tags: Drop-In, Drop-In Isolator. More details for 2H5NAC can be seen below.