Smart Electronics Thin film matrix control keyboard 1/2/3/4/3*4/4*4 MCU extended keypad

Our Thin Film Matrix Control Keyboard is a high-performance, ultra-slim MCU extended keypad 

series, available in 1/2/3/4 single-row keys and 34/44 matrix layouts. Engineered for seamless 

integration with MCU (Microcontroller Unit) systems, this film keypad delivers reliable tactile 

operation, stable signal transmission and space-saving design—making it the ideal human-machine 

interface (HMI) solution for embedded systems, industrial control, smart devices and electronic 

equipment that require compact, programmable keypad input.

Off-the-shelf 1/2/3/4-key single-row and 34/44 matrix configurations, perfectly matched with 

mainstream MCU systems. No complex secondary design needed, greatly shortening your product 

development cycle and assembly time.

Adopts high-quality PET/PC thin film material, with an ultra-slim profile that is far lighter and more 

compact than traditional mechanical keypads. Ideal for installation in space-constrained enclosures, 

embedded devices and compact control panels without compromising functionality.

✅ Stable Matrix Signal Transmission, MCU-Compatible

Optimized matrix circuit design ensures low contact resistance and anti-interference performance, 

delivering clear, error-free signal input to MCU systems. Supports direct wiring connection with 

common MCUs, with stable data transmission even in long-term continuous use.

Embossed tactile keycaps with clear click feedback for comfortable operation; each key withstands 

1,000,000+ press cycles. The surface is dustproof, waterproof and scratch-resistant, adapting to 

harsh industrial and daily use environments (-20℃ to 70℃ operating temperature).

While providing standard layouts, we also support custom key labels, color schemes, cable lengths 

and connector types. The matrix design is highly programmable, matching different MCU 

programming requirements for diverse function setting of keys (numeric input, function control, 

shortcut operation, etc.).

Integrated film matrix structure reduces production and assembly costs compared with 

mechanical keypads; one-piece molding design lowers failure rate and subsequent 

maintenance costs, bringing higher cost performance for mass production.

Ideal Applications

Automotive auxiliary control, marine electronic small control panels

All our thin film matrix control keypads are manufactured under strict quality control, 

with professional circuit testing and durability testing for each batch. The product meets 

industrial electronic component standards, ensuring stable and reliable operation in various 

application scenarios.

Whether you need a simple 1-4 key input for basic MCU control or a 34/44 numeric/function 

matrix keypad for complex operation, our thin film matrix control keyboard series provides a 

perfect combination of compact design, stable performance and easy MCU integration—your 

trusted choice for MCU extended keypad solutions.