The PE83IR1026 from Pasternack Enterprises Inc is a RF & Microwave Isolator with Frequency 8 to 12 GHz, Average Power Forward 10 W, Insertion Loss 0.5 dB, Isolation 20 dB, Operating Temperature -20 to 70 Degree C. Tags: Module with Connectors, Coaxial Isolator. More details for PE83IR1026 can be seen below.