Nanjing Zhongshan Membrane Switch Co., Ltd.
Verified Supplier
10 Years
jiangsu, nanjing
Since 2002
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Metal Dome Membrane Switch

 (182)

Tactile Membrane Switch

 (66)

Flat Membrane Switch

 (52)

PCB Membrane Switch

 (22)

LED Membrane Switch

 (36)

FPC Membrane Switch

 (20)

Illuminated Membrane Switch

 (18)

Backlit Membrane Switch

 (42)

Sealed Membrane Switches

 (42)

Single Button Membrane Switch

 (6)

Membrane Switch Panel

 (148)

Membrane Switch Keyboard

 (42)

Why Can We Always Ensure Excellent Quality

Quality Control

QC Standards

Graphic Overlay Printing Spelling mistake Not allowed
Incorrect front Not allowed
Dimension error >0.3mm is Not allowed
Color Less than 2 levels with the specified Pantone or RAL colour
Dot impurities Diameter less than 0.2mm
Distance between two impurities is more than 50mm The number of impurities is less than 2 within 100cm²
Linear impurities Width is less than 0.2mm,length is less 0.4mm in panel surface.
Distance between two impurities is more than 50mm
Window impurities Diameter is less than 0.3mm in the center ofthe window
Circuit Layer Printing Routing error Not allowed
Circuit Line width >0.3mm is not allowed
Position offset >0.4mm is not allowed
The key size deviation >0.2mm is not allowed
Dot impurities Diameter less than 0.5mm
Distance between two impurities is more than 20mm
The number of impurities is less than 3 within 100cm²
Linear impurities Width is less than 0.3mm, length is less than 1mm
Distance between two impurities is more than 50mm
The number of impurities is less than 3 within 100cm²
Connector Loose Not Allowed
Askew Not Allowed
Appearance Product layered,the edge cracking Not allowed
Stains Not allowed
Damage Not allowed
Performance Life of the single button With usual operation method,more than 500K times
Service life of the switch In the standard environment and operation method, it is more than 12 months

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