4×5 Matrix Array 20 Key Membrane Switch Keypad – Soft Touch Keyboard for Arduino

The 4×5 Matrix Array 20 Key Membrane Switch Keypad is a reliable and durable input device ideal for microcontroller-based applications. This soft-touch tactile keypad features 20 buttons arranged in a 4-row by 5-column matrix, providing a user-friendly interface for a variety of DIY and industrial electronic projects.

Built for robustness and flexibility, the keypad has a life span of up to 100 million keystrokes and excellent resistance to moisture and dust. The flat membrane design makes it ideal for compact setups with limited space. The adhesive backing allows for easy installation on panels, enclosures, or flat surfaces. It connects to your controller via a 9-pin female berg connector, making integration simple and fast.

🔧 Key Features

• 20-key membrane keypad (4×5 matrix layout)
• Soft-touch feel with no moving parts
• Rated for over 100 million operations
• Backed with adhesive for secure placement
• Resistant to dust, moisture, and harsh environments
• Simple 9-pin interface for microcontroller use

📐 Technical Specifications

📌 Applications

• Arduino and embedded system inputs
• Robotics control panels
• Access control keypads
• DIY custom electronics projects
• Menu-driven interface in enclosures

💡 Why Choose This Product?

The 4×5 Matrix Membrane Switch Keypad offers a professional interface for microcontroller-based devices with ease of mounting, long life, and reliable contact. It’s ideal for applications needing a space-efficient and low-cost keypad solution.

📦 Package Includes

• 1 × 4×5 Matrix 20 Key Membrane Switch Keypad