Tactile Switch 12mm

12*12mm Tact Switch is a popular electronic component that is widely used in various electronic devices. Its small size, low profile, and high reliability make it an ideal choice for use in portable electronic devices, computers, telecommunications equipment, automotive applications, and other related applications. The switch's low actuation force, tactile click, and stable electrical contact ensure that the switch provides smooth and reliable operation, making it an indispensable component in many electronic product.

The  4 Pin Tact Switch represents a pivotal element within the domain of electronic components, characterized by an optimal confluence of dimensions, operational capabilities, and robustness, rendering it a preferred choice for a diverse array of applications. Its 12x12mm form factor strikes a unique equilibrium between compactness and functionality, thereby differentiating it distinctly from both smaller and larger counterparts.

Design and Construction

The SPST Tact Switch is available in multiple mounting configurations, with surface-mount device (SMD) and through-hole technologies being the most prevalent. SMD variants, highly regarded in contemporary manufacturing practices, facilitate direct soldering onto the surface of printed circuit boards (PCBs). This design streamlines the assembly process, as automated placement equipment can accurately position these switches, minimizing human error and enabling high-volume production with consistent quality assurance. Additionally, the SMD design conserves valuable PCB real estate, facilitating the integration of additional components and contributing to the miniaturization of electronic devices.

Conversely, through-hole 12x12mm tactile switches feature pins that are inserted through pre-drilled apertures on the PCB and soldered on the opposing side. This installation methodology offers superior mechanical stability, making it particularly suitable for applications subject to vibrations, shocks, or rough handling, such as in automotive electronics, industrial machinery, and outdoor equipment.

In terms of construction, the switch housing is typically fabricated from high-grade engineering plastics, such as polycarbonate or acrylonitrile butadiene styrene (ABS). These materials exhibit exceptional resistance to impacts, abrasion, and environmental factors, ensuring the switch's ability to withstand the rigors of daily operation. The internal contacts, a critical component of the switch, are commonly composed of highly conductive metals, such as copper or brass. To further enhance conductivity and mitigate oxidation over time, these contacts are often coated with precious metals, such as gold or silver, thereby ensuring stable electrical performance throughout the switch's operational lifespan.