Membrane Switch+ Aluminum Plate

Membrane Switch with An Aluminum Backer

Membrane switch with an aluminum plate backer is a common combination of industrial design, especially in applications that require lightweight, durability and good tactile feel (such as medical equipment, industrial control panels, home appliances, etc.).

Features of An Aluminum Plate as Backing Plate:

Structural support:：Provides a rigid and flat mounting base for membrane switches, preventing deformation when pressed.

Heat dissipation：Aluminum material's thermal conductivity allows it to help dissipate heat generated by internal components during operations, such as LEDs or the switches used for a long time and at high frequency

EMI/RFI protection：Protects the sensitive electronic components of the switch from electromagnetic interference (EMI) and radio-frequency interference (RFI)

Lightweight：Compared to a stainless-steel backer, an aluminum backer provides sufficient rigid support while reducing weight.

Easy to install and fix：The aluminum backer can be pre-drilled or designed with snap-on features for facilitate installation on the equipment/device housing.

Alternative Comparison

Aluminum plate vs. Stainless Steel plate: Stainless steel plate is more corrosion-resistant but heavier and higher cost

• Aluminum plate vs. Plastic liner: Plastic (such as PC/ABS) liner offers good insulation properties, but poor heat dissipation performance and rigid support.
• Aluminum plate vs. FR4 Fiberglass: Fiberglass is suitable for high-frequency working circuits but is brittle.
  Typical Applications

• Industrial control panel: Vibration-resistant and oil-resistant.
• Medical equipment: Easy to clean and disinfect, meeting hygiene standards.
• Vehicle center console: High and low temperature resistance and lightweight.
• Appliances operate panel: aesthetically and durable look (e.g. microwave ovens, coffee makers).