The SFI1020 from Fairview Microwave is a RF & Microwave Isolator with Frequency 1 to 2 GHz, Average Power Forward 10 W, Average Power Reverse 5 W, Insertion Loss 0.5 dB, Isolation 19 dB. Tags: Module with Connector, Coaxial Isolator. More details for SFI1020 can be seen below.