The M-3IDC15-1 from L-TEQ Microwave Technology is a RF & Microwave Isolator with Frequency 1.35 to 1.75 GHz, Average Power Forward 1 W, Insertion Loss 0.4 to 0.7 dB, Isolation 16 to 19 dB, Operating Temperature 15 to 35 Degree C. Tags: Module with Connectors, Coaxial Isolator. More details for M-3IDC15-1 can be seen below.