What is a Metal Dome? Introduction to long-life metal dome switches
1. What is a Metal Dome?
A Metal Dome is a dome-shaped metal snap dome (like a metal spring), commonly used in membrane key switches. Simply put, a Metal Dome is a type of press switch. The dome, typically made of materials like phosphor bronze or stainless steel, usually has a cover film applied over it and is adhered to PCB or FPC circuit boards. Due to its shape resembling a yurt or an upside-down bowl, Metal Domes are also often called "鍋仔片(pot piece)" in Taiwan.
The principle of metal dome is when the key is pressed, the metal snap dome deforms and makes contact with conductive parts on the PCB, allowing current to pass and thus forming a circuit.
2. What are the applications of Metal Dome?
Due to their small size, good tactile feel, and flexible layout, Metal Domes are widely used in control panels for household appliances to industrial equipment, and also in some mobile phones, cameras, and laptops. Some high-end laptops, aiming to achieve a premium tactile feel and enhance user experience, use Metal Dome Sheets in their TouchPads to create a 'bouncy' press sensation.
3. What are the advantages of Metal Domes represented by Horustech Electronics?
Horustech Electronics represents high-quality Metal Domes from MinebeaMitsumi of Japan, which have the following advantages and features:
- High Lifespan: Up to 3 million actuations.
- High Customizability: Supports customization in terms of dome shape, size, and elasticity.
- Precision in Small Sizes: Capable of very thin and small sizes, with dome sizes as small as 4mm and heights as low as 0.2mm.
- High Precision Placement: Utilizes automated equipment for assembly, offering tight spacing and an accuracy of ±0.1mm.
- Low Noise: Offers special silent Metal Dome specifications, generating less noise compared to standard products.
- Nub Design: Provides designs with nubs to reduce misalignment during assembly, creating a better tactile feel.
- Water and Dust Resistance: Can be designed to be water and dust-resistant.
- Rich Variety: A rich selection of dome types available to create the best tactile feel.
- High Production Capacity: Monthly production capacity can reach 50 million (40 pcs/1 Sheet), thus offering a competitive price advantage.
Sources
Provided by MinebeaMitsumi
Video Introduction
About Horustech Electronics
Horustech Electronics is the distributor for MinebeaMitsumi, offering products like metal domes, tactile switches, connectors, and LRA motors. If interested, please click 'Contact Us' above to consult with us.
+886-3-426-6335
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