The DC20-010100SF from Corech Microwave is a Directional Coupler with Frequency 1 to 10 GHz, Coupling 20 dB, Coupling Variation ±1 dB (Balance), Directivity 12 to 15 dB, Average Power 50 W (CW). Tags: Module with Connectors. More details for DC20-010100SF can be seen below.