Membrane 4x4 Matrix Keypad

The Membrane 4x4 Matrix Keypad is a versatile input device commonly used in various electronic applications. It consists of a rubber or plastic membrane with a grid of conductive pads arranged in a 4x4 matrix configuration. When a key is pressed, it completes a circuit between the corresponding rows and columns, allowing the microcontroller to detect the keypress.

Key Features:

• 4x4 Matrix Configuration: Provides 16 discrete keys for input.
• Membrane Design: Offers a tactile and durable feel, making it suitable for long-term use.
• Customizable Key Layout: Can be customized with different key labels or arrangements to suit specific applications.
• Easy-to-Use: Simple to integrate into electronic circuits and control using appropriate software or hardware.
• Low-Profile Design: The flat profile makes it ideal for applications where space is limited.

Applications:

• Electronic Devices: Used in various electronic devices, such as calculators, remote controls, and gaming consoles.
• Industrial Applications: Employed in industrial equipment for user input and control.
• DIY Projects: Popular for DIY enthusiasts to create custom keyboards and input devices.

DATA SHEET AND USECASE

Common Applications:

• Security systems: Used for entering passcodes or activating/deactivating alarms.
• Menu selection: Allows users to navigate through options in embedded systems.
• Data entry: Facilitates input in devices like calculators or control panels.

Technical Specifications:

• Operating Voltage: Typically up to 12V DC.
• Current Rating: Up to 30 mA.
• Contact Resistance: 10Ω to 500Ω, depending on lead lengths and materials used.
• Insulation Resistance: 100MΩ at 100V.
• Dielectric Withstand: 250VRms (50-60Hz, 1min).
• Operating Temperature: -40°C to +80°C.
• Dimensions: Approximately 2.7 x 3.0 inches (6.9 x 7.6 cm) for the keypad; cable length varies.