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Pushbutton Switches

Pushbutton switches are widely used in many applications, ranging from discrete switch needs in consumer electronics and automotive to larger industrial applications. This type of switch comes in both momentary and latching varieties, and potential applications include computers, gaming consoles, audio equipment, automotive and household machines, among others. Each type of switch has a working principle which is described below.

Momentary Pushbuttons

Momentary pushbutton switches are designed to closed when activated by the user and open afterwards. They act as a conduit for electricity only when the user is pushing or holding the switch. The working principle of this type of switch is quite simple. When the user activates the switch, the internal contacts of the pushbutton become connected and create a circuit, but when the user releases it, the contact event ends and the switch is open. Since this type of switch can be very small in size, they are often found in consumer electronics applications.

Latching Pushbuttons

Similar to momentary switches, latching pushbutton switches are designed to close and open according to user input. However, this type of switch can remain activated if the user leaves it in the “on” position. This means it can remain in the closed position even if the user has stopped pushing or holding the switch. This is due to the fact that the internal contact of the switch, either metal or plastic, remain in their positions until reset by the user, at which point it will reset and the status will return to the default state. This makes it possible for the user to control the switch without having to keep it activated for long periods of time. It also is widely used in automobiles and there are even special models designed for the purpose.

Applications

Pushbutton switches have a wide variety of applications where the user must be able to discretely control a switch without having to keep it open or closed for long periods of time. Common applications of both momentary and latching switches include consumer electronics, computer accessories, gaming consoles, audio equipment, automotive, household machines and industrial equipment. This type of switch is also well suited to applications where small spaces must be conserved, such as when used in buttons or parts of other control equipment.

Conclusion

Pushbutton switches are useful switches that can be used in various applications, with various working principles that make the switch either momentary or latching. Pushbutton switches are well suited to consumer electronics and automotive applications, where discretion and small spaces must be kept in mind. Furthermore, its latching function is needed for many automotive components. The versatility provided by pushbutton switches makes this type of switch a great choice for many applications.

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