4-leg with holes Stainless Steel metal dome
Shape:Cross-shaped
Diameter:5-20mm
Force:125-1000gf
Surface plated:gold, silver, nickle
Customization: Customizable
Application Examples
Push-button switches: Such as side buttons on mobile phones and remote control buttons, which conduct electricity when pressed by deforming the spring blade.
Battery connectors: Provide stable elastic contact for batteries (such as button cell battery holders).
Connector interfaces: Used for elastic connections between PCBs or modules to ensure low-impedance contact.
4-leg Metal Dome Manufacturing Process
Stamping Forming: Precision dies are used to cut out the spring sheet shape, with tolerances controlled to ±0.01mm.
Heat Treatment: Stainless steel undergoes aging treatment to enhance elasticity; beryllium copper undergoes solution treatment.
Surface Treatment:
Nickel plating (2-5μm) for corrosion resistance.
Gold plating (0.1-0.3μm) to improve conductivity, used in high-performance circuits.
Inspection: Spring force testing, contact resistance testing (e.g., below 50mΩ), and optical inspection of appearance.
Metal Dome Manufacturer
The 4-leg metal dome features four support legs, delivering high actuation force and tactile feedback within equivalent dimensions. Available in multiple sizes and actuation force specifications.
With its distinct tactile feedback, diverse styling options, and broad applicability, the F Series dome stands as one of Sanyo's most popular designs. The four-leg dome can be mounted on various switch surfaces, including single/double-sided printed circuit boards, flexible circuit boards, and membrane switch panels.
The 4-leg with holes Stainless Steel metal dome is also known as the cross-shaped metal dome. Its most significant distinction from other fragment-type domes lies in its four-leg structure. Compared to triangular domes, they offer a longer service life, typically exceeding 1 million cycles. They are widely used in single/double-sided printed circuit boards, flexible circuit boards, and membrane switches. Under identical diameter, actuation force, and compression ratio conditions, they feature a greater height than other domes and command a higher price point.
The 4-leg with holes Stainless Steel metal dome range in size from 5mm to 20mm, with actuation forces spanning 125-1000gf. Parameters such as elasticity and travel can be adjusted to meet specific customer requirements.
They may be supplied in standard bulk packaging or individually mounted onto array tape for easy peeling and placement onto designated positions on keyboards, FPCs, and PCBs.
