The JDC20-1W-75+ from Mini Circuits is a Directional Coupler with Frequency 50 to 750 MHz, Coupling 19.09 to 19.64 dB, Directivity 21.05 to 24.92 dB, Power 0.5 W, Average Power 0.5 W. Tags: Surface Mount. More details for JDC20-1W-75+ can be seen below.