3X4 Flexible Matrix Keypad 12 Key Membrane Switch Keypad

3X4 Flexible Matrix Keypad has 12 buttons, arranged in a 3X4 grid. It’s made of a thin, flexible membrane material The keys are connected into a matrix, so you only need 7 microcontroller pins (3-columns and 4-rows) to connect the key pad.

3X4 Flexible Matrix Keypad membrane switch is a printed electronic circuit that uses pressure to open and close a circuit.

The membrane switch circuitry is most often screen printed using conductive inks, which are typically made of silver, carbon, and/or graphite.

It’s made of a thin, flexible membrane material with an adhesive backing (just remove the paper) so you can attach it to nearly anything.

The keys are connected into a matrix, so you only need 7 microcontroller pins (3-columns and 4-rows) to scan through the pad.

12 Key Membrane Switch Keypad provides a useful human interface component for microcontroller projects.

Membrane switches are part of a range of devices considered to be user interfaces (also called operator interfaces, or man-machine interfaces) along with display-based touch screens, and mechanical switches such as push-button, toggle, rocker, and slide switches.

The ultimate purpose of a 3X4 Flexible Matrix Keypad is to serve as the interface between man and machine, enabling an operator to communicate with a piece of equipment, instrument, or machinery.

12 key Membrane Switch Keypad is high-quality soft touch feeling button keypad with 100 million life-stroke lifespans and good resistance to environmental conditions.

This is a membrane keypad with no moving parts. A female 7-pin berg connector is require for interfacing it with your microcontroller circuits.

Features: –

• Ultra-thin design & adhesive backing provides easy integration to any project
• Easy communication with any microcontroller
• Maximum Rating: 24 VDC, 30 mA
• Interface: 7-pin access to 3×4 matrix

3X4 Flexible Matrix Keypad Specifications:-

• Non Tactile keypad hence very high Life Expectancy.
• Less contact bounce.
• Scratch Proof.
• Longer switch life and Greater Reliability.
• Easy Mounting-Self Adhesive.
• Low Cost.
• Operating Voltage 35V DC
• Operating Temperature -20 to 70°
• ROHS Compliant

3X4 Flexible Matrix Keypad Technical Parameters: –

• Pad Size: 69.2 x 76.9 x 0.8mm
  
• Cable Length: 3-1/3″ or 86mm (include connector)
  
• Weight: 7g
  
• Connector: Dupont 7 pins, 0.1″ (2.54mm) Pitch
  
• Mount Style: Self-Adherence
  
• Max. Circuit Rating: 35VDC, 100mA
  
• Insulation Spec.: 100M Ohm, 100V
  
• Dielectric Withstand: 250VRms (60Hz, 1min)
  
• Contact Bounce: <=5ms
  
• Life Expectancy: 1 million closures
  
• Operation Temperature: -20 to +40 °C

Datasheet: –

wiltronics.com.au/…/ARD2-2112 Data Sheet.pdf

Package: –

1 x 3X4 Flexible Matrix Keypad 12 Key Membrane Switch Keypad

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