The DC15-001004SF from Corech Microwave is a Directional Coupler with Frequency 0.15 to 0.48 GHz, Coupling 15 dB, Coupling Variation ±1 dB (Balance), Directivity 20 dB, Average Power 20 W (CW). Tags: Module with Connectors. More details for DC15-001004SF can be seen below.