Product Overview Mini-Circuits’ SYDC-7-651HP+ surface mount directional coupler provides high power handling up to 15W and low mainline loss of 0.5 dB or better for applications from 10 to 650 MHz. The coupler features core and wire construction mounted on an 8-lead printed laminate base with wraparound terminations for ex- cellent solderability. The unit measures 0.38 x 0.50 x 0.25″, accommodating dense circuit board layouts.