A membrane Switch is a momentary switching device that is manufactured by using a series of flexible layers of polyester films and adhesives. The upper-most layer, called a graphic overlay, is manufactured by printing on the second surface of clear polyester or polycarbonate film. Membrane switches can be constructed with multiple circuit layers, and more complicated graphic design features, such as domed key embossing. Designs that are more complex require, more material layers for proper construction and reliable operation. Membrane switches, when combined with components such as a tactile dome, graphic overlay, or integrated LEDs or resistors can provide the designer with virtually limitless capablities to create the ideal custom user interface for their products.
- Product Details
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Quick Details
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Keypad Button Material:
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Polyester Autotex V150
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Product name:
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membrane keyboard
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Structure:
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Metal domes
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Back adhesive:
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3M467
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Operating force:
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360g
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Led window Color:
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Transparent red color
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QC:
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100% function test
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Printing:
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Silk Screen Printing
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Thickness:
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1.3mm
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Circuit:
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PET or FPC
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Material:
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V150 Matt PET
Quick Details
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Place of Origin:
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Guangdong, China
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Brand Name:
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ETOUCH
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Model Number:
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ET-MK-078
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Keypad Button Material:
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Polyester Autotex V150
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Product name:
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membrane keyboard
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Structure:
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Metal domes
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Back adhesive:
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3M467
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Operating force:
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360g
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Led window Color:
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Transparent red color
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QC:
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100% function test
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Printing:
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Silk Screen Printing
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Thickness:
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1.3mm
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Circuit:
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PET or FPC
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Material:
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V150 Matt PET
waterproof embossed polycarbonate graphic overlay membrane keyboard Front View
Transparent red Window---2 leds Lateral luminescence under the red big button
10 LEDs under the transparent window
3M467 back adhesive
Membrane switch thickness 1.3mm, with pull tape on the 3M back adhesive paper
Back View
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waterproof embossed polycarbonate graphic overlay membrane keyboard
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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 Membrane Keyboard Products:
a) Tactile membrane switch
b) Non-tactile membrane switch
c) PCB/FPC membrane switch
d) Shielding ESD membrane switch
e) Embedded LED or resister membrane switch
f) Metal keypad and keyboard with metal/plastic housing
g) Sheet metal fabrication, cutting, bending, stamping and welding
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waterproof embossed polycarbonate graphic overlay membrane keyboard
What is Membrane Switch
Quality Assurance
All products are 100% quality tested and monitored carefully prior to
shipment.
State-of-the-art testing equipment.
Efficient assembly and packing lines
All products compliant with RoHS and other regulations
Strict assembly, reliability and functional tests to ensure the total and effective quality control
Automatic hole-punching machine
Colorimeter
Life Test Machine
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No.
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Item
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Description
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1
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Overlay Material
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PET(polyester),PC(polycarbonate), Silicone, Acrylic,
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2
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Components:
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LED, metal dome, connector and FPC, PCB, Resistor, all these can be designed and made according to customer requirements.
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3
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Dimension
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According to customer's demand,OEM service
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4
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Artwork Format
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CorelDraw, Adobe Illustrator AI or EPS, AutoCAD Dwg or DXF
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5
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Color
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Pantone and RALcolor matching system.
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6
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Embossing
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raises the surface of graphic overlay to emphasize the active key area,upper circuit can be embossed to insert metal domes
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Embossed type: Pillow emboss, Dome emboss, Frame emboss
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7
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Keys Options
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For a tactile response and indicate the location of switches
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1. Tactile Keys: metal domes or poly domes
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2. Non-tactile keys: flat button, printed silver spot on the circuit,
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8
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Cables
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Extension of circuit and communication with your device
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9
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Circuit option
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1. Silver printed conductive inks
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2. Copper etched circuit /Polyimide Kapton circuit Flexible print circuit( FPC)
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3.Print circcuit board (PCB)
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10
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Connector Tail
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1.Zero insertion force(ZIF) with 0.5MM ,1.0MM,1.25MM pitch
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2. Female connector with 2.54MM pitch;
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3 .Male connector ;
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4.Solder Pins
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11
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Shielding (ESD)
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For protect circuit function
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12
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Printing
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screen printing, Semi-Auto matic printing, Automatic Printing
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13
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Window
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Clear or transparent, translucent, red/black/white/green etc transparent window
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14
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Surface
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glossy or matte surface
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15
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Rear Adhesive
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3M467,3M468, 3M9080, 3M9495, 3M7959,3M9471, 3M300VHB, Nitto,
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We have the capacity to provide waterproof embossed polycarbonate graphic overlay membrane keyboard , membrane switch panel with other special requirements, such as Shielding, Windows/Lens Coating, Embossed button, Embossed LEDs, UV glossy/matte/textured, EL,LED backlight,rubber keypad etc.
