DC 12V 1×4 Key Matrix Membrane Switch Keypad

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Product Image
Working Principle

Description

The DC 12V 1×4 Key Matrix Membrane Switch Keypad operates based on a matrix form where a microcontroller can 'scan' the 5 output pins to determine which of the 4 buttons is being pressed. It is a membrane keypad with no moving parts.

Sensor Types

Dos And Donts

Donts

  • Do Not Exceed The Specified Operating Voltage (35 Vdc): Operating the keypad above the specified voltage may damage the components.

Dos

  • Ensure Proper Voltage Supply (Dc 12v): To ensure the keypad functions correctly, provide a stable DC 12V power supply.
Limits

Contact Resistance

  • Value: 500Ω,
  • Description: The maximum acceptable contact resistance for proper functionality.

Mech

  • Electrical Lifecycle: Value: ≈ 1,000,000 cycles, Description: The approximate number of mechanical and electrical cycles the keypad can endure before potential failure.
How To Connect

Interfacing

  • Connection Type: Male 5-pin berg connector,
  • Instructions: Use a Male 5-pin berg connector to interface the keypad with your microcontroller circuits.
Dimensions

Height (Mm)

1

Length (Mm)

110

Weight (G)

1 (approx)

Width (Mm)

70