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Specifications

Poly Domes Tactile Membrane Switches:
1.marterial: PET
2.Custom keypads
3.with transparent windows
4.15 years experience

Shenzhen Lunfeng Namplate Co., Ltd. is a professional membrane keyboard in Electronic Components & supplies, membrane keyboard is widely used on industrial and home electronic equipments.

Poly Domes Tactile Membrane Switch in Electronic Component & Supplies specifications/special Features:

Membrane overlay material: matte Polycarbonate (PC) , gloss Polycarbonate (PC) + matte oil, gloss PC, Polyester (PET)

Keyboard Thickness: 0.4---1.0mm

LED windows: transparent and translucent

Embossed switches: no embossed keys and domes, domes without embossed keys, embossed keys without domes, embossed keys and metal domes

Adhesive: 3M9448,3M467,3M468,3M300LSE, Nitto, and no adhesive

Tail: tail with clear mask or green mask

Poly Domes Tactile Membrane Switch in Electronic Component & Supplies Advantages: 
1.Beautiful appearance, rich and bright in color,design can be arbitrary, the products can fully reflect the individual style of the product itself and designer.  
2. Panel can wash, good protection of durable color, characters, logos and other panel contents without injury.  
3. Small size, light weight, thin thickness, good tactility,abrasion resistant,installation and connection convenience.  
4. Tightness is good, moisture-proof, dust-proof, waterproof, anti-oil, anti-corrosion and erosion of harmful gases proof, acid and alkali proof, quakeproof.  
5. Low cost, high lifespan, membrane switchs design and manufacture are using the keyboard as a whole way, whether on the material or mold charges, the costs are lowest,the life expectancy of  different types of membrane switch is more than 100 million times.  
6. Easy to operate, intuitive, safe and reliable,In-house 100% functionally tested,components are guaranteed without any intermittent problem.
 7.Customized specification is available and keys can make different shapes.

Poly Domes Tactile Membrane Switch  performance indicators: 
1. Electronic characteristics 
Circuit rating: 35V (DC), 100mA, 1W
Contact resistance: 10Ω--500Ω (According the trace length and materials to comfirm) 
Insulation resistance:> 100MΩ 250V DC 
Contact bounce: ≤ 5ms     Dielectric withstand:250VRms (50-60Hz 1min) 
Life expectancy: flat type ≥ 5 million times, tactile type: ≥ 1 million times 
2. Mechanical Properties  Actuation force:flat type 57-284g (2-10 Oz), tactile type 170-397g (6-14 Oz)  Switch stroke: flat type 0.1-0.5mm, tactile type 0.6-1.5mm 
3. Environmental parameters 
Operating Temperature: -40 ^oC- +80^oC , Storage temperature: -40^oC - +85^oC
Humidity: 40^oC , 90% -95%, 240 hours