Description:
The 4×5 20-Key Membrane Matrix Keypad is a versatile input device designed for seamless integration with microcontroller projects. Featuring 20 tactile keys arranged in a 4×5 matrix, this keypad facilitates efficient user interaction for applications such as security systems, menu navigation, and data entry interfaces. Its ultra-thin membrane design, coupled with an adhesive backing, allows for easy mounting on various surfaces, enhancing design flexibility.
Operating at a voltage range of 3V to 12V DC, the keypad is compatible with a wide array of microcontroller platforms. It utilizes a 9-pin, 2.54mm pitch connector, ensuring straightforward integration with development boards like Arduino, AVR, and Raspberry Pi. The matrix configuration requires minimal microcontroller pins, optimizing I/O resource utilization. With a robust design capable of enduring over 1 million keystrokes per key, the 4×5 Membrane Matrix Keypad offers a durable and efficient solution for diverse electronic projects.
Specifications:
- Keypad Layout: 4×5 matrix (20 keys)
- Operating Voltage: 3V to 12V DC
- Operating Current: 100mA
- Contact Resistance: ≤100mΩ
- Insulation Resistance: ≥100MΩ
- Dielectric Strength: 250VRms
- Key Operating Force: 150 to 200g
- Rebound Time: ≤5ms
- Life Expectancy: >1,000,000 keystrokes per key
- Connector Type: 9-pin, 2.54mm pitch female header
- Keypad Dimensions: 85mm x 73mm x 1mm
- Cable Length: 104mm (including connector)
- Operating Temperature: -40°C to 80°C
- Storage Temperature: -40°C to 80°C
Features:
- 20-button keypad arranged in a 4×5 matrix for efficient input
- Ultra-thin membrane construction with adhesive backing for easy installation
- Requires minimal microcontroller pins, optimizing I/O usage
- Compatible with Arduino, AVR, Raspberry Pi, and other microcontroller platforms
- Durable design with a lifespan exceeding 1 million keystrokes per key
Contents:
- 1 x 4×5 20-Key Membrane Matrix Keypad
