The K2-1101DF-C4DW-01 is a tactile switch manufactured by HRO parts. This switch is through-hole mounted and designed to be compatible with a wide range of printed circuit boards and automated controllers. It is RoHS compliant, meaning that it does not contain any lead, cadmium, mercury, or other hazardous materials that may be harmful to the environment or user. The "DF" in its name stands for dual force, indicating that the switch has two different operating forces (light and heavy). It has a 4-pin design, allowing it to be configured in either normally open or normally closed states. The switch is rated for up to 50mA at 24V, and is ideal for use in audio, security, gaming, automotive, consumer electronics, and other applications where tactile feedback is desirable.