The H201X is compact, momentary switches mount on .625 inch (15.87 mm) centers in rows or matrix arrays and are the same height and panel size as Switchcraft's Hi-D Jack. Rugged "box" body protects contact springs against mechanical damage and keys them in precise alignment. Precision springs produce high contact pressure, smoother wear-reducing actuation, and positive "make-break". Recommended where contact resistance is not critical.