The ALPS SKSLLCE010 tactile switches are surface mount components that measure 4.5 x 2.6 x 2.2 mm. They provide a nominal operating force of 3.5 N, a resistance of 500 mOhms, and a maximum current rating of 50 mA at 12 VDC. The contacts of the switch have gold-plated surfaces with there being SPST -NO (single-pole single-throw, normally-open) construction.