The 2J9NJ from Renaissance Electronics Corporation is a RF & Microwave Isolator with Frequency 21.1 to 23.6 GHz, Average Power Forward 10 W, Average Power Reverse 5 W, Insertion Loss 0.7 dB, Isolation 18 dB. Tags: Drop-In, Drop-In Isolator. More details for 2J9NJ can be seen below.