The DC30-001005NF from Corech Microwave is a Directional Coupler with Frequency 0.1 to 0.5 GHz, Coupling 30 dB, Coupling Variation ±1 to 2 dB (Balance), Directivity 20 to 22 dB, Average Power 50 W (CW). Tags: Module with Connectors. More details for DC30-001005NF can be seen below.