Membrane Switches

Superior Durability

Offering easy cleanability, membrane switches are resistant to moisture, chemicals, and abrasion.

Design Flexibility

With custom colors, textures, backlighting, and tactile response options, membrane switches offer a wide range of design configurations.

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factory machine membrane switch keypad

CNC machine membrane switch keypad

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medical equipment membrane switch keypad

ECG machine membrane switch keypad

Custom Manufacturing, Design and Engineering Support

A membrane switch is a micro-motion, momentary contact, flexible circuit with a printed graphic overlay. Boyd provides complete user interface custom manufacturing, design and engineering support, and sub-assembly for membrane switch panels. Versatile and economical, membrane switches are ideal for industries such as medical and industrial equipment because they are easy to clean with no moisture ingress. They also offer thin design options coupled with nearly endless membrane keypad configurations.

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Product Details

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Membrane Switch Design Options

The simple, low-profile switch panel fabrication offers a custom interface at an economical price point. A wide range of cost-effective design options make membrane switches an ideal choice for a variety of applications. Options include:

Display windows
Embossed or re-legendable overlay
Multiple overlay versions, single switch design
ESD/EMI shielding
Custom backlighting
Rigid subpanel or printed circuit board (PCB), which doubles as subpanel
Easier integration or retrofit with existing controllers

Membrane Switch Construction and Specifications

Membrane switches are normally screen-printed on thin polyester using silver or carbon conductive ink. Metal domes are integrated to provide tactile feedback.

Specifications	Typical values
Actuation force	Non-tactile: 85g to 285g, tactile: 100g to 700g
Switch height	Non-tactile: 0.007" to 0.011", tactile: 0.012" to 0.040"
Panel thickness	0.025" to 0.035"
Life cycle	1,000,000 actuations
Operating voltage	1VDC min. 30VDC max. 15 VRMS max.
Operating current	250 mW maximum
Closed circuit resistance	100 ohms maximum
Open circuit resistance	10 Mohms minimum
Contact disturbance time	20 ms maximum
Capacitance	<500 pF
Static	10k VDC minimum
Isolation	1k VDC for 1 second
Dielectric ink withstand	1kVDC between adjacent traces
Dielectric substrate material	11kVDC/per mil in thickness
Operational temperature	-30C to +65C
Storage temperature	-40C to +80C
Moisture	5% to 95% relative humidity, non-condensing.
EMI/RFI shielding	Available