The RFDC5M06G20-H from RF-Lambda is a Directional Coupler with Frequency 0.5 to 6 GHz, Coupling 19 to 21 dB, Frequency Sensitivity ±0.5 to ±0.8 dB, Directivity 18 to 20 dB, Average Power 50 W. Tags: Module with Connectors. More details for RFDC5M06G20-H can be seen below.