The JDC-10-4-75+ from Mini Circuits is a Directional Coupler with Frequency 10 MHz to 1 GHz, Coupling 10.39 to 10.62 dB, Directivity 24.04 to 38.35 dB, Power 1 W, Average Power 1 W. Tags: Surface Mount. More details for JDC-10-4-75+ can be seen below.