The PDC-100M500M-40C-NFF-500W from Quantic PMI (Planar Monolithics) is a Directional Coupler with Frequency 100 to 500 MHz, Coupling 40 dB, Coupling Variation ±1 dB, Directivity 20 dB, Power 500 W. Tags: Module with Connectors. More details for PDC-100M500M-40C-NFF-500W can be seen below.