Comparison of Metal Dome Switches and Tact Switches
Durability
These switches generally have a longer lifespan, with a capacity of up to 1 million actuation. They are more durable compared to tact switches.
- Tact Switches
While reliable, they typically do not last as long as metal dome switches.
Assembly
- Metal Dome Switches
Can be assembled manually or mechanically. If sticker-type domes are used, multiple buttons can be assembled simultaneously, making the process more efficient.
- Tactile Switches
Require soldering to the PCB, making the assembly process more time-consuming and less flexible compared to metal dome switches with stickers.
Space Efficiency
- Metal Dome Switches
Occupy less space and can be integrated with multiple buttons, making them suitable for compact designs such as remote controls and keyboards.
- Tact Switches
Typically takes up more space due to the need for soldering and additional components.
Customization
- Metal Dome Switches
Can be customized in shape, strength, and tactile feedback according to specific requirements. They are often made-to-order and not commonly stocked.
- Tact Switches
Offer less customization compared to metal dome switches and are more standardized in design.
Protection and Insulation
- Metal Dome Switches
Provide some dust proofing but generally have weaker protection compared to custom membrane switches. They also lack the insulation properties that tact switches offer.
- Tact Switches
Better protection and insulation, making them more robust in environments where these factors are critical.
Temperature Resistance
- Metal Dome Switches
Those with legs or specific shapes (like a triangle with a foot) can withstand higher temperatures than tact switches. Sticker-type metal domes, however, have lower temperature resistance.
- Tact Switches
Generally have good temperature resistance, suitable for a wider range of applications.
PCB Integration
- Metal Dome Switches
Can be directly attached to the PCB without the need for soldering, simplifying the assembly process.
- Tact Switches
Require soldering, adding complexity to the assembly and design process.
Electrical Characteristics
- Both Types
Designed for low-voltage applications and cannot handle high resistance loads or be directly connected to household current.
Applications
- Metal Dome Switches
Ideal for applications requiring a compact design, high durability, and flexibility in assembly, such as remote controls, keyboards, and custom interfaces.
- Tact Switches
Suitable for applications where robust protection, insulation, and higher temperature resistance are essential, such as industrial controls and consumer electronics.
If you need further information or are interested in any of these products, please contact Shanyo.