Electronic Scale External Control Metal Dome Membrane Switch
Quick Details
Overlay Material: PET / PC / Autotex F200 XE
Rear Adhesive: 3M467MP / 3M468MP / 3M300LSE, etc.
Thickness: Customized
Color: PMS and RAL color matching system
Others: LED / LCD / transparency window LED light
Application: Electronic scale exterior control panel
Typical Specification of Membrane Switch
Specifications will vary depending on materials, construction and circuitry. Please consult Maxswall Engineering for unique characteristics.
ELECTRICAL
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Operating Voltage: 0-30 VDC.
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Operating Current: 100 MA Max.
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Operating Contact Resistance: Less than 100 OHMS typical (measured at the connector).
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Contact Bounce: Less than 10 Milliseconds typical.
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Conductors: Printed silver conductive inks or carbon blend (PC board assemblies available).
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RFI and Static Shielding available in most configurations.
MECHANICAL
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Life Expectancy: Douglas guarantees 1,000,000 actuation per switch position or 12 months.
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Actuation Force: 2 -16 oz. range available — depending on customer specification. (4 - 8 oz. is considered medium actuation force for non-tactile configuration).
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Switch Travel: .005" to .030" typical.
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Overall Thickness: .020" to .050" typical.
ENVIRONMENTAL
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Storage Temperature: -40°C to +80°C
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Storage Altitude: Sea level to 40,000 feet.
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Operating Temperature and Altitude: Variable depending on customer requirements (can be designed to operate in most environments).
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Humidity: No delaminating after 24 hours at 85°C and 85%RH.
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The specifications above are general. For information on more specific applications, contact one of Douglas Corporation's design engineers.
Our Best Service
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Custom design expertise
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Single source manufacturing
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Assembly of surface mount components/circuit boards/back plates
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Multi-tasking switch pattern designs
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Custom molded boxes, bezels and frames with switch installation
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Precise color matching and repeatability
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Water resistant designs to Nema 4
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Fiber optic back-lighting
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100% function testing of all circuits in-house
