The ZUDC10-183+ from Mini Circuits is a Directional Coupler with Frequency 0.5 to 18 GHz, Coupling 10 dB, Coupling Variation ±1.5 dB, Directivity 12 to 22 dB, Average Power 10 to 50 W. Tags: Module with Connectors. More details for ZUDC10-183+ can be seen below.