The DC2000100050GB from Sainty-Tech Communications Limited is a Directional Coupler with Frequency 0.1 to 0.5 GHz, Coupling 20 dB, Coupling Variation ±1 dB, Frequency Sensitivity ±1 dB, Directivity 20 dB. Tags: Module with Connectors. More details for DC2000100050GB can be seen below.