One stop solution service provider for all kind of membrane switch products


Home   |   Products   |   Membrane Switch   |  

Unigreat factory metal dome glossy membrane keypad switch

Unigreat factory metal dome glossy membrane keypad switch
L/C, D/A, D/P, T/T, Western Union, MoneyGram, paypal payments
Delivery time:
Start Port:
Shenzhen, HongKong, Guangzhou, Shanghai
ISO9001, IATF16949, ISO14000, PAHS, REACH, ROHS

Add success, do you want to check your shopping cart?


Product Feature

  • Overlay Color: Pantone or RAL-color Number
  • Button Color: Customized
  • Button Option: Flat or Emboss
  • Emboss Type: Pillow/Dome/Border Emboss 
  • Dome Type: Mylar/Poly Dome, Metal Dome
  • Material: PET(polyester)/PC(polycarbonate)
  • Material Brand: Autotex/Toyobo/F150/F200/XEF150/XEF200/Customized
  • Surface Finish: Glossy or Matte 
  • Thickness: 0.7~1.5 mm/Customized
  • LED Color: White/Green/Red/Customized
  • OEM Artwork/Drawings Format: Corel Draw, Adobe Illustrator AI, AutoCAD
  • Tail/Pin/Circuit Layout: Based on customers detailed requests
  • Antistatic Shielding: Can be added For Protection
  • Connector: Female/Male Connectors or ZIF Connector
  • Rear Adhesive: 3M467, 3M468, 3M9080 etc…
  • Cables: Extension of Circuit and Connect with your Device
  • Printing Method: Silk Screen Printing/Digital printing
  • Windows/Lens Coating: Can be added
  • CertificateI: SO9001 RoHS CE SGS REACH  PAHS

Product Details

The structure and working principle of membrane switch

Graphic Overlay

PET/PC is usually the material of choice due to its fantastic chemical resistance and flex property . UNIGREAT can do digital printing, screen-printing, or apply both methods to ensure you get the right colors, textures and finish your design requirements.

Overlay Adhesive

This adhesive layer stick the graphic overlay to the top circuit layer, and is usually an acrylic adhesive. The material is same with the fourth layer. Only the thickness maybe different according to the actual situation.

Top Circuit Layer

The material of this layer is specific. Is is a 0.1mm thickness thermostable PET film printed with conductive silver ink and also dielectric oil, which used for fastening metal domes.

Circuit Spacer

This layer separates the top circuit from the bottom circuit so that switch remains normally break until the keypad is pressed. The circuit spacer is a polyester spacer with adhesive on both sides.

Lower Circuit Layer

This layer is a 0.1mm--0.25mm thickness thermostable PET film printed with conductive silver ink and also dielectric oil. This layer terminates as a flexible tail that serves as an interconnector to controller PCBs or other IC.

Rear Adhesive

This adhesive layer bonds the entire membrane switch to the product surface, housing, or to a rigid support panel. UNIGREAT can use the proper adhesive type and thickness to bond your membrane switch to your equipment.

Product Parameter

Electrical Properties

Rated Voltage

≤ 50V DC

Rated Current

≤ 100mA

Operating Power

≤ 1W

Insulation Resistance

≥ 100MΩ (250V DC)

Loop Resistance

10Ω ~ 2kΩ (based on the design)

Contact Resistance

0.5 ~ 5Ω

Wire Lead Resistance

< 1Ω/cm

Base Material Voltage Withstand

1500V DC

Mechanical Properties

Life Expectancy

Flat type ≥ 5 million times, Tactile type ≥ 1 million times

Operation Force

Flat Type 57-284g, Tactile Type 170-397g

Dome Rebound Time

≤ 6ms

Tail Bending Performance

≤ 180°

Switch Stroke

Flat 0.1~0.5mm, Tactile 0.6~1.5mm


20G' s max


0.7~1.5 mm

Environmental Properties

Operation Temperature

-40°C to +80°C (-40°C to 176°F)

Storage Temperature

-40°C to +85°C (-40°C to 185°F)

Atmospheric Pressure

86 ~ 106 kPa


+40°C, 90% ~ 95% RH for 240 Hours

Product Application

Membrane switch because of its fantastic Electrical Properties, Mechanical Properties and Environmental Properties, it is widely used in Smart Home Appliances, Office Equipment, Medical Equipment, Automobile and Industrial Equipment.


Product Message


Chat Online 编辑模式下无法使用
Chat Online inputting...