The DBTC-17-5LX+ from Mini Circuits is a Directional Coupler with Frequency 50 MHz to 2 GHz, Coupling 16.41 to 18.11 dB, Directivity 11.55 to 22.42 dB, Power 2 W, Average Power 2 W. Tags: Surface Mount. More details for DBTC-17-5LX+ can be seen below.