The SMI-9012 from Sierra Microwave Technology is a RF & Microwave Isolator with Frequency 9 to 12 GHz, Average Power Reverse 2 W, Insertion Loss 0.4 dB, Isolation 20 dB, Operating Temperature -54 to 125 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for SMI-9012 can be seen below.