Nanjing Zhongshan Membrane Switch Co., Ltd.
Nanjing Zhongshan Membrane Switch Co., Ltd. Over 20 Years of Membrane Switch Supplier
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LED Custom Membrane Keyboard , Smart Metal Dome Tactile Membrane Switch
Custom Membrane Keyboard Introduction
Membrane keypad flexible polycarbonate or polyester film printed with conductive paste made of the switch contact circuit is a contact switch.
Membrane keypad has the advantage of the whole flat, thin shape, quality, small, dust-proof, good, good water resistance, is a semi-enclosed structure. In addition, the panel design, and great freedom of choice of colors. Positive range of applications of desktop computers, copiers, fax machines, toys, square computer, word processor and other areas of expansion.
Metal domes added to the membrane switch provide the upper circuit layer. That contributes the keys to visual, audible, and tactile feedback. The switch can performance well in high temperature environment. The product are mainly used as control keypad for medical equipment. Also, keypad of Haiwen can be customized based on customer’s design such as button icons, colors etc. Selecting matte PET to screen print the overlay appears elegant and colorful. The circuits are made of Acheson ED-820B silver paste, so that it can be low resistance and function well. The rear adhesive is 3M 468.
Custom Membrane Keyboard Parameter
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1.Electrical Properties
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Electrical Level:
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35V(DC), 100mA,1W
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Contact Resistance:
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10Ω~500 Ω
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Insulation Resistance:
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100MΩ/100V
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Dielectrics Voltage-resistance:
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250VRms(50~60Hz 1min)
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Chattering Time:
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≤ 5ms
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Life Time:
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Flat type ≥ 5,000,000; Tactile type ≥ 1,000,000
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Tail Folding:
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R>1,180
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2.Mechanical Properties
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Operating Force:
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Flat type 57~280g(2~10oz); Tactile type 150~400g(6~14oz)
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Switch Stroke:
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Planar type 0.1~0.5mm; Tactility type 0.6~1.5mm
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3.Environmental and Storage Conditions
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Operation Temperature:
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-40°C ~ +80°C
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Storage Temperature:
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-40°C ~ +70°C
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Humidity:
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40°C, 90%~95%, 240 hours
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Our Service:
Free samples are available.
Your inquiry will be replied within 24 hours.
Well-trained & experienced staff are to answer all your inquiries in English of course.
Our products are exported to Europe, North America, South America, Africa, many countries
in Asia etc.
Good after-sale service offered, please get back if you get question.