The DC10-50M90MBF from Corech Microwave is a Directional Coupler with Frequency 0.05 to 0.09 GHz, Coupling 10 dB, Coupling Variation ±0.5 dB (Balance), Directivity 20 dB, Average Power 30 W (CW). Tags: Module with Connectors. More details for DC10-50M90MBF can be seen below.