The 2H4NHD from Renaissance Electronics Corporation is a RF & Microwave Isolator with Frequency 1.625 to 1.66 GHz, Average Power Forward 80 W, Average Power Reverse 70 W, Insertion Loss 0.3 dB, Isolation 20 dB. Tags: Drop-In, Drop-In Isolator. More details for 2H4NHD can be seen below.
