The SMI-0709 from Sierra Microwave Technology is a RF & Microwave Isolator with Frequency 680 to 870 MHz, Average Power Reverse 2 W, Insertion Loss 0.5 dB, Isolation 20 dB, Operating Temperature 0 to 50 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for SMI-0709 can be seen below.