2*4 Side Press Tact Switch

The working principle of 2*4 side press Tact Switch

Side-pressing light-conTact Switches are constantly improved in terms of development and functional requirements, but their basic structural principles remain unchanged. The structure of a tactile switch generally consists of a key cap, a reset spring, a bridge-type moving contact, a static contact, a column-type connecting rod and a housing.

Buttons are not subject to external forces (i.e., static) in contact with the split and closed state, divided into start button, stop button and composite button. Start button, press the button cover when the contact is closed, release the contact automatically open reset. On the contrary, when the button stops, the contacts are separated when the cover is pressed, and the contacts are automatically closed and reset when the cover is released. When the push button cover is pressed, the bridge movable contact moves downward and the normally closed contact first breaks and then closes the normally open contact. After releasing the button cover, the normally open contact first breaks to reset, and then closes the normally open contact to reset.

Product Description

1、 Basic characteristics

Size: The size of the switch is usually 2 x 4 millimeters (may vary slightly depending on the manufacturer and product model).

Structure: This type of switch usually adopts a side pressure design, and users can activate the switch by applying pressure from the side. Its internal structure may include metal spring plates, contact spring plates, or conductive rubber blocks, etc., used to achieve circuit switching.

Electrical performance:

Rated voltage: The rated voltage may vary depending on the specific model and application scenario.

Rated current: also depends on the model and specifications of the switch.

Contact resistance: usually small to ensure good circuit connection.

Insulation resistance: High to ensure good insulation performance of the switch in the disconnected state.

2、 Working principle

When pressure is applied to the side of the switch, the metal spring or contact spring inside the switch will deform, forming a path with the solder pad and closing the circuit. After releasing the pressure, the metal spring or contact spring will return to its original state and the circuit will be disconnected.

3、 Application Fields

The 2 × 4 Side Press Tact Switch is widely used in various electronic devices due to its compact size and reliable electrical performance, such as:

Digital products: such as mobile phones, tablets, cameras, etc.

Security equipment: such as access control systems, alarms, etc.

Computers and communication products, such as keyboards, mice, routers, etc.

Household appliances: such as televisions, washing machines, air conditioners, etc.

Smart home and smart wearable products, such as smart bracelets, smart watches, etc.