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Your position: Index > >Products>Membrane Keyboard Switch
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LGF backlight membrane switch
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Product Feature
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LGF backlight membrane switch is a backlight effect with unique appearance design
. A kind of new material namely light film is used on the basis of tranditional
membrane switch, with the characteristics, when the LED light flash out on the light
film and after diffusion ,It can have the effect of t backlight. Compared with the
traditional EL backlight, production process is relatively simple and much easier
to drive for LGF backlight.
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Material
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PET:
Polyester is used for both circuit layers
and overlay layers. High temp and corrosion resistant, the flexibility and mechanism
are good as well as high reliability. It is mostly suitable used in
products where the application environment are atrocious or products are emboss
required.
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PC:
Polycarbonate is usually used for
overlays. It has more competitive price than PET so mostly used in products that
styles improved frequently, such as microwave oven and toys , etc.
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Standard Specification
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Electrical
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Maximum Circuit Rating
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35V( DC),100mA 1W
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Contact Resistance
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10Ω ~ 500Ω (depending on trace length & material used).
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Insulation Resistance
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≥100M Ω at 100V
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Dielectric Withstand
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250 V Rms (50~60 Hz 1 min.)
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Contact Bounce
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≤5ms
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Life Expectancy
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Flat type ≥5 million
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Tactile type ≥1 million
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Mechanical
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Operating Force
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Flat type = 57 to 284 g (2 to 10 oz)
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Tactile type = 170 to 397 g (6 to 14 oz)
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Switch Stroke
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Flat type = 0.1 to 0.5mm
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Tactile type = 0.6 to 1.5mm
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Environmental
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Operation Temperature
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Flat/Metal dome: -20 ℃ to +80 ℃
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Poly dome: -20 ℃ to +60 ℃
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Storage Temperature
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Flat/Metal dome: -40 ℃ to +80 ℃
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Poly dome: -40 ℃ to +60 ℃
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Humidity
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40 ℃ , 90% for 240 hours
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Vibration
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20 G's0 max
(10-200 Hz、MIL-STD-202、M204、Condition B)
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Applications
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Household appliance, medical instruments, measuring instruments.
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