G3T Ultra-Miniature SMT Toggles NKK Switches G3T Ultra-Miniature SMT Toggles are ultra-miniature in size and ideal for handheld applications. NKK G3T features a totally sealed body construction and molded-in, epoxy sealed terminals that prevent contamination. The STC (Sliding Twin Contact) mechanism features smooth, positive detent actuation, increased contact stability, and unparalleled logic-level reliability.