DE 133-RS-30/6,35/12 is a pushbutton switch rated at 5V, produced by Display Elektronik. It is a 12mm, single pole, single throw, momentary contact switch with a silver nickel-plated steel button, and a 6.35mm mounting bushing. The electrical rating is 15A/125VAC, 1/2HP, and the mechanical life is 5,000,000 cycles.