The 3×4 Membrane Switch Keypad is a thin, flexible keypad commonly used for numeric input in electronics projects. It features 12 keys arranged in a matrix configuration.
Specifications
Key membrane Type:3x4
Operating voltage: Works with any logic level (3.3V, 5V)
Type: Passive matrix (no active components)
Contact resistance: < 100Ω when pressed
Insulation resistance: > 100MΩ
Debounce required: Yes (software or hardware)
Bounce time: Typically 5-10ms