The ADC-16-4-75+ from Mini Circuits is a Directional Coupler with Frequency 5 MHz to 1.25 GHz, Coupling 16.3 dB, Directivity 8 to 30 dB, Power 0.5 to 1 w, Average Power 0.5 to 1 w. Tags: Surface Mount. More details for ADC-16-4-75+ can be seen below.