1825399-4

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Pushbutton Switches

An 1825399-4 application field and working principle is a type of pushbutton switch that is available in a variety of styles and configurations to suit different applications. Pushbuttons, sometimes called buttons, push buttons, or switches, are commonly used components in many electronic devices, ranging from computer keyboards, to videogames, to household appliances. Pushbuttons can take the form of single-function, spring-return devices, or multiple-function, rotary capable devices, and can be categorized into four distinct types: momentary, latching, illuminated, and non-illuminated.

Momentary Pushbuttons

Momentary pushbuttons are single-function switches, meaning they are only capable of completing one action or sending one signal when actuated. They are spring-return devices that are designed to “pop back” when the pressure on the button is relieved, turning the circuit off in the process. These switches are perfect for applications where a short, single action needs to be taken, and are the most common type of pushbutton found in consumer electronics, such as opening and closing a circuit in a momentary fashion, or starting and stopping a motor.

Latching Pushbuttons

Latching pushbuttons are similar to momentary pushbuttons but are specifically designed to actuate and remain in the actuated state even after the pressure or force is removed. These switches are most commonly used in applications where two states are required, such as a two-position machine control, or where two separate signals are sent, such as a locking or unlocking mechanism. This is done by connecting two sets of contacts to the switch - one set is normally Off and the other is normally On - so that when the button is pressed, the contacts being thrown will change state.

Illuminated Pushbuttons

Illuminated pushbuttons are a type of switch that combines the features of both momentary and latching pushbuttons with the added capability of providing visual feedback to the user. These switches are often used in applications where a button needs to signal when it has been turned on, such as in a game controller, or in signal lamps. Illuminated pushbuttons are typically comprised of two separate components - a pushbutton switch and a lamp - which are fused together in a single unit. The lamp is generally connected to the same terminal as the switch, which allows the light to be illuminated whenever the switch is depressed.

Non-Illuminated Pushbuttons

Non-illuminated pushbuttons are a type of switch that combines the features of both momentary and latching pushbuttons without providing any visual feedback to the user. These switches are most often used in applications where a switch is needed to control a larger piece of equipment, such as industrial machinery, as they are designed to be durable in harsh environments. Non-illuminated pushbuttons are typically constructed from steel, brass, or plastic, and can be further protected by adding a rubber cover.

An 1825399-4 application field and working principle is a latching pushbutton switch. Its purpose is to actuate and remain in the actuated state even after the pressure or force is removed. This type of pushbutton is typically used in applications where two separate signals need to be sent, such as a locking or unlocking mechanism. It is typically constructed from steel, brass, or plastic, and can be further protected by adding a rubber cover to increase its operational longevity.

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