Snap Action Switches, also known as micro switches, are switch devices that are used to open or close an electrical circuit at a rapid speed. These highly sensitive switches are very often used in aircraft, ordinance, and moist or dusty industrial environments.

1SE1-T Snap Action Switch from Honeywell is an environment-sealed, enclosed-type basic micro switch. Featuring sturdy aluminum housing, this Honeywell Snap Action Switch provides corrosion resistance and seals precision contacts from contamination. It has temperature tolerance to 105 °C [221 °F]. This Plunger Switch is specifically designed to provide tough and reliable performance for high-temperature applications. It is available with a solder termination option to save the installation time.