The SFI3846S from Fairview Microwave is a RF & Microwave Isolator with Frequency 380 to 460 MHz, Average Power Forward 1000 W, Average Power Reverse 30 W, Insertion Loss 0.35 dB, Isolation 20 dB. Tags: Module with Connector, Coaxial Isolator. More details for SFI3846S can be seen below.