Metal Dome Membrane Switch

Membrane switch is made for weighing machine, this material is PET and adehsive.

Specification of Membrane switch,

this keyboard switch is made for weighing machine, this material is PET

membrane panels, overlays and flexible printed circuit with

→Pressing life-span is over one million times

→UV window + circuit + LED light + (Connector) + double-side adhesive

→tactile/not tactile

→metal/poly dome

→Embossment

→smooth/matte

Membrane keypad Key Specifications/Special Features:

• Material: matte PC (smooth), gloss PC + matte oil, gloss PC, matte PET, gloss PET
• Thickness: 0.05---1.0mm
• LED windows: transparent, translucent, matte
• 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 keypad:
• Overlay+circuit+LED+metal dome or poly dome array+connector+double side tape
• EL backlight+Rubber keys
• Aluminum plate+Rubber keys
• Metal domes
• Flat without Tactile Effect
• Embossing with Tactile Effect
• Embossing with Metal Dome
• Membrane Switch with FPC

• 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 ≥ 5 million times, tactile type: ≥ 1 million times
• 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
• Environmental parameters
• Operating Temperature: -40 C- +80 C, Storage temperature: -40 C - +85 C
• Humidity: 40C, 90% -95%, 240 hours