C&K 

An industry leader in interface and switching technology, smart cards and high reliability connector products. C&K offers more than 55,000 uniquely numbered parts, all of which are manufactured, priced and delivered according to standard classification items. C&K's products include: flat touch switches, navigation switches, detection switches, pushbutton switches, rotary switches, switch locks and pushbutton switches, slide switches, toggle switches, DIP switches, illuminated switches and sealed switches.