The UK-B0228-G12-SP25 with Tactile Switches SMD RoHS is a type of electromechanical switch manufactured by USAKRO. Its two main components are a plastic or metal actuating button and an internal mechanical mechanism (spring and contacts). These switches usually require a light pressure against the button for activation, and are widely used in consumer electronics, such as for power, reset, volume, and play/pause functions. They are usually available in an array of sizes (8.5x8.5mm to 18.5x8.5mm) and shapes (rectangular, square, round). The UK-B0228-G12-SP25 with Tactile Switches SMD RoHS is manufactured in compliance with Restriction of Hazardous Substances (RoHS) standards, which requires that products must not contain certain hazardous substances at high levels.