C&K offers several options for power and function keys on “smart” products such as radiator valves and outlet plugs. For reset functions, the KMT0 is one of the smallest tact switches on the market with a 3 x 2.6mm footprint. The KMR series tact switch comes in a compact low profile package with gold contacts for corrosion resistance and operating life up to 300K cycles. The PTS645 at 6 x 6mm and the PTS820 at 3.9 x 2.9mm are ideal options for more cost sensitive applications requiring a compact low profile tact switch.