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Tactile Switches

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A tactile switch is a type of electrical switch that gives the user tactile feedback in the form of a snap action when the switch has been actuated. This switching device includes a base having an extended bowed spring provided with a peak portion, and a slidable actuator having a cam-shaped surface.

These tactile switches are momentary contact devices, which operate when depressed with a force of between 100 and 300 gm. These tactile switches are also generally single-pole single-throw elements and are designed for high-density mounting.

The actuator in the tactile switch is an elastomeric actuator top that impinges on a metal contact. Applied force exceeding a certain point pushes the contact onto stationary contacts to complete the circuit. Contacts can be either gold or silver depending on design requirements.

These electrical tactile switches are available in:

Surface-mount style: These have crimped terminals with a spring action for ensuring secure mounting during automated soldering.
Through-hole style: These have gull-wing terminals for mechanical stability during soldering.

Applications
Tactile switches find application in various areas and equipment including:

Dishwashers
Vacuum cleaners
Paper shredders
Coffee makers
Digital thermometers
Blood pressure measurement and medication
Dispensing machines
LCD monitors
Remote controls
Set-top boxes
Cameras
MP3 players
Video keyboards
Automotive radios
Steering wheel controls
CD players.

Tags:- Electrical Switches, Slide Switches, Surface Mount Tactile Switches, Surface Mount Through Hole, Tact Switch, Tactile Membrane Switches

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