4*4 Electronic Keypad Keyboard 16 Buttons Matrix Module Kit with 8 I/O Ports
- Our Wholesale Price includes Shipping & Handling Charges and GST
- Processing time12 ~ 20 days
- Country Of OriginChina
- Quantity
- Available
- SKU51002742
Product Description
In the application system of microcontroller, keyboard is essential in man-machine dialogue. When you are short of a button, you can connect one to the I/O port of the comtroller; but when you need a lot of buttons with limited I/O port resources, this 4*4 Matrix Keypad is no doubt your best choice. 4*4 matrix keypad is the most applied keypad form. The key layout is in matrix form, so with only eight I/O ports, we can identify 16 buttons, saving lots of I/O port resources
Description:
- 4*4 matrix keypad
- Eight I/O ports, can identify 16 buttons
- Size: (approx.) 49 x 39 x 8mm/ 1.93*1.54*0.3inch
- Material: Fibreboard
Specification:
- Circuit grade: 35V(DC),100mA,1W
- Contact resistance: 10Ω~ 500Ω(changing with wire length and materials)
- Insulation resistance: 100MΩ 100V
- Dielectric Strength: 250VRms(50~60Hz 1min)
- Electrical shock shaking time: < 5ms
- Service life: Tactility type: ≥ 1 million times
- Operating pressure: Tactility type: 170~397g(6~14oz)
- Switching path: Tactility type: 0.6~1.5mm
- Operating temperature: -40~+80
- Storage temperature: -40~+80
- Temperature: 40, 90%~95%, 240H
- Vibration: 20G,max.(10~200Hz,Mil-SLD-202,M204.Condition B)
Package includes:
- 1 x Matrix Keypad