The T10J1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 10.95 to 12.75 GHz, Insertion Loss 0.8 dB, Isolation 20 dB, Operating Temperature -40 to 60 Degree C. Tags: Module with Connectors, Coaxial Isolator. More details for T10J1 can be seen below.