The P4DC-30A-2 from Mini Circuits is a Directional Coupler with Frequency 5 MHz to 1 GHz, Coupling 30.2 to 31.11 dB, Directivity 16.48 to 48.5 dB, Power 1 to 2 W, Average Power 1 to 2 W. Tags: Surface Mount. More details for P4DC-30A-2 can be seen below.