K5-1639SN-01 is a Microswitch SMD manufactured by HRO Parts, with dimensions of 7.5 x 5.6 x 3mm and compliant RoHS. This particular microswitch is a single unit, suitable for a wide range of applications, such as tailoring current to an electronic device. It is triggered when a certain amount of force is applied, with the movement and position of the contacts being displayed through the movement of a physical lever. This microswitch is an ideal choice for applications that require quick, accurate switching and low contact resistance. Additionally, its small size and surface-mount design make it suitable for applications with limited space, without having to sacrifice precision. Additionally, its RoHS compliant design ensures that it contains no hazardous materials and is safe to use.