The 991-160180-301 from M2 Global Technology is a RF & Microwave Isolator with Frequency 1.6 to 1.8 GHz, Average Power Forward 75 W, Average Power Reverse 10 W, Insertion Loss 0.3 dB, Isolation 19 dB. Tags: Drop-In, Drop-In Isolator. More details for 991-160180-301 can be seen below.