The BDCA-15-25+ from Mini Circuits is a Bi-Directional Coupler with Frequency 800 MHz to 3.5 GHz, Coupling 13.41 to 20.95 dB, Average Power 23 to 40 W, Power 23 to 40 W, Insertion Loss 0.21 to 0.70 dB. Tags: Surface Mount. More details for BDCA-15-25+ can be seen below.