“NKK Switches, an industry leader in the design and manufacture of electromechanical switches, continues to expand its product offerings with the introduction of the new HP Series of 6mm eco-friendly tactile switches. The HP Series was designed specifically to meet the RoHS directive, which restricts the use of hazardous substances such as lead and cadmium. This environmentally friendly series of through-hole and surface mount tactile devices, features lead-free construction in the switches themselves and the packaging materials also meet all RoHS requirements.” Source: ThomasNet