The PDC-25M-35M-25-SFF from Quantic PMI (Planar Monolithics) is a Directional Coupler with Frequency 25 to 35 MHz, Coupling 25 dB, Coupling Variation ±2 dB, Directivity 25 dB, Power 5 W. Tags: Module with Connectors. More details for PDC-25M-35M-25-SFF can be seen below.