Sealed Keyboards Using Snap Domes

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Life ExpectancyOne million to 3 million operations per switch.
Key Travel380 microns.
OverlaysDifferent types of Polyesters from Autotype
Operating Pressure180-280 gram force.
Supply TypeManufacturer, Exporter, Supplier, Retailer
Preferred Buyer Location All over the world

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Company Information

Solar Biotronic Laboratories Private Limited

Prabhat Road, Pune, Maharashtra

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Member Since 15 Years
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Humidity95% RH at 40oC.
ranging from0.4 mm to 3.2 mm.
PlatingGold Over Nickel; Bright Acid Tin.
BaseGlass Epoxy PCB FR4 Grade in thicknesses ranging from
Current/Voltage Rating10 mA at 24 VDC (Max) in to resistive load only
Contact ResistanceCompatible with MOS, TTL & DTL Circuits.
Operating Pressure180-280 gram force.
Key Travel380 microns.
OverlaysDifferent types of Polyesters from Autotype
Life ExpectancyOne million to 3 million operations per switch.
AdhesivesIndustrial Grade from 3M.
Operating Temperature-20oC to + 65oC.
Contact ArrangementSPST, Normally Open.
Contact BounceLess than 10 milliseconds at make & 20 milliseconds at break.

These Keyboards comprise of a snap dome switch and a gold plated glass epoxy PCB for base and circuit. Snap Dome Switches (Special SS Alloys) are mounted and sealed on a gold plated PCB to conduct the signals in the keyboard circuit. The switch contacts can be terminated on any type of solderable connector which can be then interfaced with the controller. This entire assembly is then covered by a polyester overlay using industrial grade adhesives.

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