The 991-171217-651 from M2 Global Technology is a RF & Microwave Isolator with Frequency 1.71 to 2.17 GHz, Average Power Forward 150 W, Average Power Reverse 100 W, Insertion Loss 0.45 dB, Isolation 18 dB. Tags: Drop-In, Drop-In Isolator. More details for 991-171217-651 can be seen below.