The 4×3 Matrix Membrane Keypad is a compact and flexible input device designed for embedded systems and DIY electronics. With 12 tactile keys arranged in a matrix format (4 rows and 3 columns), this keypad is ideal for numeric input, password entry, and control interfaces. Its thin and durable membrane construction, along with an adhesive backing, allows easy installation on most flat surfaces.
Features:
12 keys arranged in a 4×3 matrix layout
Easy interfacing with Arduino, Raspberry Pi, and microcontrollers
Adhesive backing for quick mounting
Ultra-thin and flexible design
Reliable tactile response with long-lasting performance
Works with existing keypad libraries for fast integration
Package Includes:
1 × 4×3 Matrix 12-Key Membrane Keypad
4×3 Matrix 12-Key Membrane Switch Keypad
Warranty
Specifications
| Parameter | Value |
|---|---|
| Number of Keys | 12 (4 Rows × 3 Columns) |
| Keypad Layout | 1–9, 0, *, # |
| Keypad Dimensions | Approx. 70mm x 76mm |
| Cable Length | Approx. 85mm |
| Connector Type | 7-pin header |
| Operating Voltage | 3V to 5V |
| Mounting | Self-adhesive back |
| Lifespan | > 100,000 button presses |
