Everything you need to know about push button switch

Push button switches are open tactile switches that control a circuit or perform a specific action only when the button is pressed.

What is a Push Button Switch?

Push button switches are open tactile switches that control a circuit or perform a specific action only when the button is pressed. It powers the circuit when pressed and turns off the circuit when released. Depending on the type of switch, push buttons can be operated with a latching action or a momentary action.

Do not confuse push button switches with normal switches. A switch has a permanent on-and-off position, while a button has only a temporary on-and-off function. Also, when you press the push button switch, it stays pressed until you press it again to release it.

The surface of Pito’s push button switch can be flat, or it can be a shape that can be quickly pressed by fingers. This article will introduce the characteristics, types, and advantages of push button switches. How they work is also discussed.

Push Button Switch

Push Button Switch Features and Technical Specifications


A push button switch is an electrical switch that is activated by pressing a button. They are commonly used in various electronic devices such as calculators, remote controls, and toys.

Some key features of push button switches include:

  • Tactile feedback provides a crisp click
  • It has a 5mS maximum contact bounce
  • Its dielectric can withstand up to 250v AC for one minute
  • The insert-molded terminal prevents a flux rise in the switch circuit
  • Features a snap-in mouth terminal

Technical Specifications

Technical specifications for push button switches may vary by manufacturer and specific model.

However, some key technical specifications that are commonly provided include:

  • Using tactile feedback mode of operation
  • It has a MAX 50mA 24V DC power rating
  • Insulation Resistance: 100Mohm at 100v
  • Features a .55±0.69 N operating force
  • It has a MAX 100mOhm contact resistance
  • Operating Temperature ranges between -20 to +70 ℃

What are the different types of push button switches?

Push button switches are normally open (NO) or normally closed (NC). When activated, a normally open (“OFF”) switch completes the circuit, while a normally closed (“ON”) switch breaks the circuit. The function of push-button switches can be further defined within this group by the switching circuits they use.

Push button switches come in many types, with different designs and configurations, making them suitable for different applications.

Some of the most common types of push-button switches include:

  • Arduino push buttons
  • Momentary push buttons
  • 2-position push buttons
  • Miniature push buttons
  • Push to make switch pushbuttons
  • Tactile push buttons
  • PCB push-button switches
  • Industrial push buttons
  • Dual push-button switches
  • Push to break button switches
  • Circuit board push button switches
  • Panel-mounted push buttons
  • Locking push-button switches
  • Push to make door button switches

How does a push-button switch work?

Push button switches work by using a physical mechanism to make or break an electrical connection. When the button is pressed, it moves the contact mechanism inside the switch, allowing current to flow through the switch. When the button is released, the contact mechanism returns to its original position, breaking the electrical connection.

The exact mechanism used to make and break the electrical connection can vary depending on the switch design. However, most push button switches consist of two parts: a movable contact and a fixed contact. The movable contact is usually a metal spring or strip held in place by the switch housing. Fixed contacts are metal plates or strips that are fixed inside the switch housing.

In some cases, push button switches may also include other components, such as diodes, resistors, or capacitors, to modify the behavior of the switch or to protect other components in the circuit from damage.

The image to the right shows how the button can be used with the ignition switch as part of the quick-start ignition circuit. This schematic shows the basic circuit design and layout required for this particular application.

Advantages of push button switches

Advantages of push-button switch

Push button switches have several advantages that make them popular in a wide range of applications.

Some of the key advantages of push button switches include:

☆ Due to the small size of the buttons, it is ideal for small devices and consoles where space for large buttons is limited.

☆ They are easy to use as they require only a simple touch to operate the device.

☆ In the case of buttons, accidentally turning the device on or off is also mitigated, as you need to manually press the button, and accidental bumps are not enough to operate the device.

☆ The push button switch adopts special sealing technology, which has the characteristics of waterproof, oilproof, anti-fouling, anti-static, anti-pollution, anti-interference, and so on.

☆ These devices are small and light. Illuminated push-button switches are generally lightweight and very easy to transport or install.

In addition, the conductivity of the push button switch is good. Circuits can be printed on the device using copper foil, silver paste or carbon paste. The unique membrane switch can withstand higher voltages, and the conductive layer can fold without restriction without compromising performance.

These switches also have a long life and good looks. These two properties of pushbutton switches are notable among many electronic switches, despite the attractive appearance and long service life of many electronic switches.

What are the applications of push button switches?

There are numerous commercial and domestic applications for BITUO push button switches, such as industrial equipment manufacturing, household application.

Some of the most prominent applications are as follows:



Push buttons are open tactile switches that join to an electric circuit when pressed and disconnect when released. This means that you must use your fingers to turn it on or off a button. These buttons are frequently employed in a variety of everyday electrical devices, including calculators. There are numerous small push button switches on a micro calculator. A logic circuit regulates power supply connections to the calculator circuitry based on the state of the push button on the keyboard.


Doorbells are widely used across the world. They are not meant to be left on indefinitely and should only be used as needed. Previously, doorbells contained electromagnets that became activated and actuated a hammer while striking a sound or melody, which remained there until the circuit was de-energized. After releasing the power switch, the hammer returns to its regular position, and the cycle begins. Modern doorbells have an inbuilt push switch that, if pressed continually, can be annoying.

Push Button Telephones

Push Button Telephones

For dialing a phone number, telephones contain numerous buttons or push switches. Electronic controls in certain phone instruments provide a variety of usability advantages, such as last number redial and storage of frequently dialed numbers, which has helped their appeal. Some push-button telephone models include extra functionality such as data coding or information retrieval and PIN entry.

Advanced Machine Controls

Push button switches are constructed in such a way that a human finger can readily handle complex control systems. These systems can be outfitted with a variety of software programs and buttons with varying colors to indicate their status. For example, in many features, the red button serves as the power button, while the yellow button indicates a pause. Color meanings are thoroughly specified in international standards for a wide range of industrial uses.

Advanced Machine Controls


Push button switches are electrical actuators that, when pressed, either close or open an electrical circuit. The actuator of a push button switch is a button or key, which can be permanent or temporary. Push button switches are normally open (NO) or closed (NC). When triggered, they complete a circuit. When closed, they break a circuit.

BITUO can provide a range of push-button switches, if you need more information, please visit us at www.bituoelec.com or send an email to [email protected].

Leave a Reply

Your email address will not be published. Required fields are marked *