This compact 4×3 matrix keypad provides reliable numeric input with its 12 tactile buttons (0-9, *, #) in a durable membrane design. Perfect for access control systems, calculators, and embedded projects, it features moisture-resistant construction and clear tactile feedback.
Key Benefits
✔ Space-saving 12-key layout
✔ Spill-proof membrane surface
✔ Clear tactile feedback
✔ Easy microcontroller integration
Pro Tip: Use with our Arduino keypad library for quick setup with built-in debouncing.
Technical Specifications
Core Specifications
Keys: 12 (0-9, *, #)
Layout: 4 rows × 3 columns
Interface: 7 pins (4 rows + 3 columns)
Voltage: Passive (1-12V compatible)
Actuation Force: 180±50g
Lifecycle: 1 million presses
Physical Properties
Material: PET surface with silver contacts
Dimensions: 70×80×3.5mm
Active Area: 60×70mm
Key Pitch: 19mm center-to-center
Temperature Range: -20°C to +70°C
Electrical Characteristics
Contact Resistance: <100Ω when pressed
Insulation Resistance: >10MΩ
Bounce Time: <5ms
Why Choose This Keypad?
Reliable - Consistent performance in demanding environments
Versatile - Works with Arduino/Raspberry Pi/PLC systems
Cost-effective - Professional quality at competitive pricing
Package Includes:
1 x 4x3 Matrix Membrane Keypad