Electromechanical Switches
Switches are fundamental components in electronics, acting as gatekeepers that control the flow of electrical current in circuits. They provide the ability to turn devices on and off, select different paths for current, and modify circuit behavior.
Types of Electromechanical Switches
Here are some common types of electromechanical switches :
- Operated by sliding a lever or knob along a track to open or close the switch contacts.
- Used in power control, mode selection, and function switching applications.
Tactile switches are a type of switch that completes an electrical circuit when pressure is applied, giving the user a perceptible click or haptic bump in response.
Detector Switches are used to “detect” internal mechanical movements and convert human manual operations, such as the opening of a door , to electronic signals.
A push switch is a mechanical device used to control an electrical circuit in which the operator manually presses a button to actuate an internal switching mechanism.
- Activated by pressing a button, which returns to its original position when released.
- Can be momentary (contacts open or close only while the button is pressed) or latching (contacts remain in the new state after the button is released).
- Used in keypads, control panels, and user interfaces.
Key Features and Considerations
When selecting a switch, consider factors such as:
- Electrical ratings (voltage, current, power)
- Contact arrangement (SPST, SPDT, DPDT, etc.)
- Actuation type (momentary, latching, alternate action)
- Mechanical durability (number of cycles)
- Environmental factors (temperature, humidity, dust, and moisture resistance)
- Mounting style (panel mount, PCB mount, wire leads)
- Industry standards and certifications (e.g., UL, CE, RoHS)