VisionMark has the capability to manufacture membrane keypads in our Sidney, Ohio plant. In addition, the company sources larger production runs from experienced ISO 9000 registered offshore manufacturing partners. The VisionMark staff takes full responsibility for manufacturing, supplier audits, plus full testing and inspection of all products at our Ohio facilities. Our operating disciplines and flexibility ensures that you receive the right product, on time, at a competitive price.
Membrane Key Pads are low profile, sealed, short travel contact devices, well suited for function/operation switching, and other simple keystroke data entry. The following specifications provide a basic beginning for many keypad and membrane designs.
Typical Specifications
Membrane Key Panels
Non-tactile
Tactile Metal Dome
Tactile Polydome
Electrical
Contact Rating
30 VDC, 100mA,I Watt
30 VDC, 100mA,I Watt
30 VDC, 100mA,I Watt
Contact Resistance
< 100 ohms
< 100 ohms
< 100 ohms
Contact Bounce
< 10 ms
< 10 ms
< 10 ms
Capacitance
< 20 pf
< 20 pf
< 20 pf
Mechanical
Actuation force
3-10 oz.
10-16 oz.
4-18 oz.
Life cycle* (Up to)
5,000,000
5,000,000
1,000,000
Key travel
.007-.011 in.
.015-.025 in.
.010-.045 in.
Environmental
Operating temperature
30° - +80° C
30° - +80° C
30° - +55° C
Storage temperature
-40° - +80° C
-40° - +80°C
-20° - +55° C
*Life cycle may decrease approaching upper and lower ends of operating temperature range.
