The DC20-010040NFH from Corech Microwave is a Directional Coupler with Frequency 1 to 4 GHz, Coupling 20 dB, Coupling Variation ±1 to 2 dB (Balance), Directivity 15 dB, Average Power 200 W (CW). Tags: Module with Connectors. More details for DC20-010040NFH can be seen below.