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overlay: 1.low cost long life expectancy 2.dust-proof waterproof gas-proof 3.100% quality tested 4.good tactile feel

overlay key specifications/special features:

Material: matte PC (smooth), gloss PC + matte oil, gloss PC, PET, and PVC

Thickness: 0.05---1.0mm

LED windows: transparent and  translucent

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

Adhesive: 3M9448,3M9080,3M467,3M468, and no adhesive

Tail: tail with clear mask or green mask

 

Specialize in manufactuing membrane switch: Overlay+circuit+LED+metal dome or poly dome array+connector+double side tapeEL backlight+Rubber keys  Aluminum plate+Rubber keys Metal domes Flat without Tactile EffectEmbossing with Tactile EffectEmbossing with Metal DomeMembrane switch with FPC

Membrane switch 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.

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 ≥ 500 million times, tactile type: ≥ 100 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 - +80 , Storage temperature: -40 - +85 Humidity: 40 , 90% -95%, 240 hours

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