The 891-280350-301 from M2 Global Technology is a RF & Microwave Isolator with Frequency 2.8 to 3.5 GHz, Average Power Forward 150 W, Average Power Reverse 10 W, Insertion Loss 0.35 dB, Isolation 21 dB. Tags: Drop-In, Drop-In Isolator. More details for 891-280350-301 can be seen below.