The 994-037182-003 from M2 Global Technology is a RF & Microwave Isolator with Frequency 5.4 to 5.9 GHz, Average Power Reverse 10 W, Insertion Loss 0.4 dB, Isolation 20 dB, Operating Temperature -20 to 65 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for 994-037182-003 can be seen below.