The D2F-01L2-D is an Omron ultra-miniature low-profile tactile switch. It is a single pole, single throw (SPST) switch that is rated to 1,000,000 cycles of use. It is sealed to IP67 rated waterproof and dustproof standards, and has a tactile feel that allows the user to easily detect when the switch has been activated. Its low profile design, at only 5.4 mm x 2.8 mm, makes it ideal for applications with limited space. It is available in both a normal open and normal close version, and has a contact resistance of 100mO max (at 1 A 6 V DC).