The 891-185191-851 from M2 Global Technology is a RF & Microwave Isolator with Frequency 1.85 to 1.91 GHz, Average Power Forward 150 W, Average Power Reverse 150 W, Insertion Loss 0.6 dB, Isolation 45 dB. Tags: Drop-In, Drop-In Isolator. More details for 891-185191-851 can be seen below.