The K2-1101UT-A3SW-01 is a tactile switch SMD RoHS manufactured by HRO Parts. It is a surface-mountable, single-pole, single-throw, momentary switch that is commonly used for electrical appliances and circuits. This tactile switch is RoHS-compliant, meaning that it does not contain any hazardous or toxic materials in its construction. It features a long life expectancy, low contact resistance, and a high level of sensitivity and reliability. It also has a high electrical rating, low breakdown voltage, and is resistant to high temperatures. This switch is perfect for pairing with other parts in an application or system.