4x4 Universal Matrix Membrane Switch Keypad :

4x4 Universal Matrix Membrane Switch Keypad :

4x4 Universal Matrix Membrane Switch Keypad :

• • 4x4 Universal Matrix Membrane Switch Keypad provides human interface & easy communication with micro-controller & electronic Arduino circuit for various applications like Security Door Lock, Lockers, Menu selection, Data Entry and many more.
• • 4x4 Universal Matrix Membrane Switch Keypad is a Matrix Numeric Keypad with 4 extra keys A,B,C & D.
• • 4x4 Universal Matrix Membrane Switch Keypad have 16 keys, arranged in 4 Columns & 4 Rows.
• • As the keys are connected in Matrix thereby only 8 pins are out for connection.
• • These 8 pins are out with a Female Burg Connector, Pitch 2.54mm.
• • Size: 70mm x 77mm
• • Flexible Tail Length : 85mm
• • 4x4 Universal Matrix Membrane Switch Keypad are popular for its easy adaptability, Mounting & Low cost.

4x4 Universal Matrix Membrane Switch Keypad consist of :

• • Graphic Overlay With Matt Finish PC film & Embossed Buttons
• • Overlay Adhesive
• • Circuitry Layer – Flexible Printed Conductive Track
• • Spacer
• • Circuitry Layer – Flexible Printed Conductive Track
• • Rear Adhesive

Raw Material Used for 4x4 Universal Matrix Membrane Switch Keypad :

• • For Overlay –175micron LEXAN make Polycarbonate Film
• • For Circuitry Layer – Autotype CT4 Circuitry film
• • Rear Adhesive – 3M91091

Few Advantages of 4x4 Universal Matrix Membrane Switch Keypad :

• • Non Tactile keypad hence very high Life Expectancy.
• • Less contact bounce.
• • Scratch Proof.
• • Longer switch life and Greater Reliability.
• • Use of Silver Conductive , carbon and insulation inks.
• • Easy Mounting-Self Adhesive .
• • Low Cost.
• • Operating Voltage 35V DC
• • Operating Temperature -20 to 70°
• • ROHS Compliant.