The PDC-12-20-50W-SMA from Quantic PMI (Planar Monolithics) is a Directional Coupler with Frequency 1 to 2 GHz, Coupling 20 dB, Directivity 25 dB, Average Power 50(Reflected/Incident), Insertion Loss 0.2 dB. Tags: Module with Connectors. More details for PDC-12-20-50W-SMA can be seen below.