Springs, despite their simplicity, are vital parts in a range of gadgets. For instance, springs in gaming controllers are responsible for the touch sensation, and in electronic door locks, they exert force to operate the lock. It's important to select the correct spring; a mistake can lead to the device malfunctioning. A well-suited spring, like those made from stainless steel, can enhance the longevity and reliability of the electronic door lock. Selection is not the sole step. You also need to design the spring to satisfy your precise needs. In this article, we provide guidelines on spring selection and design, giving you the tools to find the best spring for your requirements.


A keyboard works because of the tiny spring inside each key. When a key is pressed, the spring compresses and then reverts to its original shape when released, lifting the key back to its starting position. This action gives the user instant physical feedback, indicating that the key has been activated.

Designing springs for keyboards consists of various factors. These include the spring's material, its constant, and its geometric properties. The factors affect the experience of using the keyboard immensely. For instance, a spring requiring more force to press can result in a harder keypress. While it allows for a stable typing rhythm, it may also lead to faster tiredness during extended usage. Accordingly, spring design should match the anticipated user group's tendencies to make the keyboard more acceptable.

Keyboard designs modify over time to address changing user requirements. A popular design in many higher-quality keyboards currently is the scissor spring mechanism. In this setup, two layers of plastic components are situated beneath each key, providing improved stability and a smooth typing experience. The springs in this design are smaller and necessitate differing attributes compared to traditional springs. This reveals a distinct aspect of spring design in electronics. However, this type of design, even though it improves the experience of using the product, generally results in higher production costs due to the complex structure. Therefore, it is often found in more expensive products.



In a computer mouse, springs are used for the function of buttons and the scroll wheel. More specifically, compression springs are placed behind the buttons that get clicked by users. These springs give a feedback when each click is made, which indicates the input given by the user. The correct compression force and stiffness are necessary for the operation of these springs. The springs should not be too hard, which would make clicking difficult, nor too soft, which could result in unwanted clicks. Additionally, an appropriate spring can increase the lifespan of the button.

The scroll wheel of a mouse utilizes a torsional spring mechanism. This spring resists rotation, which adds to the controlled scrolling feature. It also ensures the wheel returns to its original position once scrolling ceases. Therefore, selecting the right torsion rate for the spring is necessary. If the torsion rate is high, more effort may be needed to scroll, while a low rate may make the scrolling less responsive.



Springs have specific uses in printers, affecting various parts including the lid and interior mechanisms. Springs located on the printer's lid facilitate a consistent opening and closing operation. This use of springs is not unique to printers, and extends to other devices such as dishwashers and refrigerators.

Within a printer, springs influence the operation of the paper feeding mechanism. These springs produce the required force to move the paper through the printer, reducing such problems as paper jams and the unwanted feeding of multiple sheets at once. The necessary pressure is influenced by the paper's thickness and the printer's functioning speed, influencing the required properties of the springs.

In printers, springs are also found in the cartridge housing. They maintain consistent contact between the cartridge and printer, promoting the smooth running of the printer. For printers that have cartridges that move, springs adapt to the movement to maintain continuous contact in different positions.


Springs in electronics serve an essential role. The choice of the right spring – considering its type, size, and material – is based on the load and stretch requirements as well as the aspects of the environment it will be subjected to. Gaining a comprehensive understanding of different types of springs and their uses contributes to more accurate troubleshooting, better repair techniques, and potentially even influencing the production of future electronic devices. Remember, springs are key components in the operation of our electronic devices.