The DC638M336B40C150PN-01 from Dyne Tech is a Directional Coupler with Frequency 470 to 806 MHz, Coupling 40 dB, Coupling Variation ±2 dB, Directivity 20 dB, Average Power 150 W. Tags: Module with Connectors. More details for DC638M336B40C150PN-01 can be seen below.