The 994-037423-001 from M2 Global Technology is a RF & Microwave Isolator with Frequency 11 to 18 GHz, Average Power Reverse 1 W, Insertion Loss 0.5 dB, Isolation 18 dB, Operating Temperature -20 to 65 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for 994-037423-001 can be seen below.