The DC20-137145SF from Corech Microwave is a Directional Coupler with Frequency 13.75 to 14.5 GHz, Coupling 20 dB, Coupling Variation ±1 dB (Balance), Directivity 15 dB, Average Power 50 W (CW). Tags: Module with Connectors. More details for DC20-137145SF can be seen below.