The MC0618-10 from Fairview Microwave is a Directional Coupler with Frequency 6 to 18 GHz, Coupling 10 dB, Coupling Variation ±1.5 dB, Frequency Sensitivity 1.25 dB, Directivity 10 dB. Tags: Module with Connectors. More details for MC0618-10 can be seen below.