The DC10-005030SF from Corech Microwave is a Directional Coupler with Frequency 0.5 to 3 GHz, Coupling 10 dB, Coupling Variation ±1 dB (Balance), Directivity 20 dB, Average Power 20 W (CW). Tags: Module with Connectors. More details for DC10-005030SF can be seen below.