Touch spring made by YLSK-20 Spring forming machine

A touch spring, also known as a touch sensor spring, key spring, or contact spring, is a type of specialized spring button used in capacitive and single-chip touch screen electrical appliances. These springs are designed to provide a tactile response when pressed, giving users a physical feedback similar to traditional mechanical buttons.

The primary usage of touch springs is to enhance the user interface and improve the user experience in touch-sensitive devices. They are often used in applications where a touch input needs to be registered with a defined level of force or pressure.

Touch springs are commonly found in various consumer electronics, such as smartphones, tablets, gaming consoles, smartwatches, and other devices that utilize touch screens or touch-sensitive interfaces. They offer a tangible and satisfying clicking or pressing sensation, simulating the feel of physical buttons while maintaining the benefits of touch-based interactions.