4X3 Matrix Keypad – Membrane type is a 12-button keypad provides a useful human interface component for micro-controller projects. Convenient adhesive backing provides a simple way to mount the keypad in a variety of applications.

The Keypad 4×3 features a total of 12 buttons in Matrix form. This is a membrane keypad with no moving parts. A female 7-pin berg connector is provided for interfacing it with your microcontroller circuits. Convenient adhesive backing provides a simple way to mount the keypad in a variety of applications.

Features:

Ultra-thin design & adhesive backing provides easy integration to any project
Excellent price-performance ratio
Easy communication with any microcontroller
5 pins 2.54 mm pitch connector, 4×3 type 12 keys.
Used widely in industrial and home electronic equipment, instrument, etc.
Flexible
Can be attached on any surface
Only 7 microcontroller pins are needed to access 12 buttons

Specifications:

Voltage(V)	DC 35V
Current(mA)	100
Contact Resistance	500Ω
Insulation Spec	100MΩ, 100V
Dielectric Strength	250VRms
Contact Bounce	<=5ms
Operation Temperature	-20 to +40 °C
Mount Style	Self-Adherence
Length (mm)	69.2
Width (mm)	76.9
Height (mm)	0.8
Cable Length (mm)	86
Connector	Dupont 7 pin
Weight (gm)	8