• metal-domes-bonsda-sd-x3c18-1d-dn-product
  • metal-domes-bonsda-sd-x3.5c16-1d-dn-product

Circular 3mm 3.5mm nickel plated strip with 1 contact dustproof metal dome array

Circular 3mm 3.5mm nickel plated metal domes are used for various remote controls such as smartphones, digital cameras, cordless phones, electronic dictionaries, and healthcare.

model:SD-X3C18-1D-DN

shape:Circular

specification:Φ3mm Φ3.5mm Φ4mm

Strength:100gf 130gf 160gf 180gf

lifetime:100000(cycles)

Surface Technology:Nickel plating

Customize:Yes

PCB design drawing Inquiry

Circular 3mm 3.5mm nickel plated strip with 1 contact dustproof metal dome array

Product Description

The "keyboard key" circular metal dome array is a keyboard arrangement that requires a long lifespan or sealed interface. These bullet switches provide positive feedback through auditory and tactile clicks. The "keyboard" circular shrapnel is made of nickel plated stainless steel and provides a very reliable user interface (over 500000 to 1 million cycles). The "keyboard" dome can be directly placed on the PCB, which will save assembly costs and improve reliability. Bulk or roll form can also be provided for automatic assembly and placement assembly applications. The "keyboard" circular pot top is designed to be placed on the PCB instead of soldered. The pot piece is fixed in place using a "keyboard" adhesive gasket. If there is adhesive at the bottom of the top sealing surface, it helps to keep the dome in the correct position. The switch needs to be ventilated between at least two domes or through a PCB in order to function properly.
model diameter height strength stroke dotted lifetime option
SD-X3C10-1D-DN 3.00+0.00 /-0.05mm 0.16±0.03mm 100±20gf 0.11±0.03mm 1 dimple 300000cycles) option
SD-X3C13-1D-DN 3.00+0.00 /-0.05mm 0.17±0.03mm 130±20gf 0.12±0.03mm 1 dimple 300000cycles) option
SD-X3C16-1D-DN 3.00+0.00 /-0.05mm 0.18±0.03mm 160±20gf 0.13±0.03mm 1 dimple 300000cycles) option
SD-X3C18-1D-DN 3.00+0.00 /-0.05mm 0.19±0.03mm 180±20gf 0.14±0.03mm 1 dimple 300000cycles) option
SD-X3C20-1D-DN 3.00+0.00 /-0.05mm 0.20±0.03mm 200±20gf 0.15±0.03mm 1 dimple 300000cycles) option
SD-X3.5C10-1D-DN 3.50 +0.00 /-0.05mm 0.18±0.03mm 100±20gf 0.13±0.03mm 1 dimple 300000cycles) option
SD-X3.5C13-1D-DN 3.50 +0.00 /-0.05mm 0.19±0.03mm 130±20gf 0.14±0.03mm 1 dimple t300000cycles) option
SD-X3.5C16-1D-DN 3.50 +0.00 /-0.05mm 0.20±0.03mm 160±20gf 0.15±0.03mm 1 dimple t300000cycles) option
SD-X3.5C18-1D-DN 3.50 +0.00 /-0.05mm 0.21±0.03mm 180±20gf 0.16±0.03mm 1 dimple 300000cycles) option
SD-X3.5C20-1D-DN 3.50 +0.00 /-0.05mm 0.22±0.03mm 200±20gf 0.17±0.03mm 1 dimple 300000cycles) option

*Swipe the table left and right on the mobile phone to view all parameters