4x3 Matrix Keypad Black (12 Keys, Header Pins)
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Prices updated: 13 Oct 2026
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About this product
A slim black 4x3 matrix keypad with 12 tactile keys and header pin connection, suitable for breadboard prototyping and user input in microcontroller projects. It measures 51 x 64 x 7 mm and is rated 24 VDC at 20 mA. Contact bounce is up to 5 ms, with a life expectancy of one million closures.
Specifications
- Matrix
- 4 x 3 (12 keys)
- Dimensions
- 51 x 64 x 7 mm
- Rating
- 24 VDC, 20 mA
- Contact bounce
- 5 ms or less
- Life expectancy
- 1 million closures
- Operating temperature
- 0 to +70 °C
- Connection
- Header pins
Frequently asked questions
How many pins do I need to connect it?
A 4x3 matrix keypad uses 7 pins in total: 4 rows and 3 columns. Each key is identified by its row and column pair.
How is the keypad mounted?
The listing states it is mounted by adhesive backing, so it can be attached to an enclosure panel or a project surface without screws.
