The PDC-20-3BD+ from Mini Circuits is a Bi-Directional Coupler with Frequency 0.2 to 250 MHz, Coupling 19.27 to 19.83 dB, Average Power 1.5 to 4 W, Power 1.5 to 4 W, Insertion Loss 0.2 to 0.39 dB. Tags: Surface Mount. More details for PDC-20-3BD+ can be seen below.