PCB Tactile Membrane Switch for Smart Car Keyboard
A membrane switch is an integrated operating system that combines key functions, indicator elements, and a control panel. It consists of four main parts: the panel, top circuit, isolation layer, and bottom circuit. When the membrane switch is pressed, the contacts on the top circuit deform downwards, making contact with the board on the bottom circuit.
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Panel material:PVC, PC, PET
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Insulation resistance:>=100VDC
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Rebound time:<=6ms
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Loop resistance:≤80Ω (within 40cm of a single key return route)
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Reliable life cycle:>100times
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Trip force:160~450g
| Basic Parameters of Tactile Membrane Switch | |
| Max. Panel size | 600*800mm |
| Max. Panel size (with emboss) | 400*500mm |
| Paste | silver paste, carbon paste |
| Ink color | red, black, blue, white, yellow, green, purple, etc |
| Trace width | 0.15-0.20mm |
| LED spec. | 0402, 0603, 0805, 1210 |
| Wire length | Per customer requirements |
| Waterproof class | IP65 |
| Connector | female pin, male pin |
| Metal dome types | triangle, for-legs, circle |
| Trip force (metal dome) | 280g, 340g, 450g |
| Travel (metal dome) | 0.35-0.71 |
| Diameter (metal dome) | 8.4mm, 10mm, 12.2mm |
| Surface treatment (metal dome) | gold plating, nickle plating, stainless |
| Back adhesive | DSMS, 3M, SOKEN |
| Citcuit board option | FPC, PCB, Aluminum |
| Panel material | PET, PC, TPU, PMMA |
A PCB (Printed Circuit Board) membrane switch is a type of switch that uses a PCB circuit as the support substrate. It typically consists of multiple layers, including a top graphic overlay, a spacer layer, and a bottom circuit layer. The graphic overlay is the visible layer with the printed symbols or graphics representing the keys.
The key function is achieved through the use of conductive traces on the bottom circuit layer. When a key is pressed, it causes the top and bottom layers to come into contact, completing the circuit and registering the keypress. Membrane switches are known for their slim profile, durability, and resistance to environmental factors like moisture and dust.
These switches are commonly used in various electronic devices such as remote controls, medical equipment, industrial controls, and consumer electronics where a compact and reliable keypad or keyboard is required.
Client Profile
CarTTV, a leading innovator in smart car technology, approached Yu An Electronics with a vision to enhance the user interface of their Smart Car Keyboard. They aimed to overcome challenges related to durability, tactile precision, and user-friendly design. Meeting the specific requirements of a smart car environment posed additional complexities, demanding a solution that seamlessly integrated cutting-edge technology with robust functionality.
Project Challenges
CarTTV faced challenges in optimizing the Smart Car Keyboard’s interface for improved user experience. The design needed to address issues such as tactile precision for accurate inputs, durability to withstand the rigors of a car environment, and a user-friendly layout for seamless interaction. The need for a solution that could resist environmental factors and provide reliable performance under varying conditions added an extra layer of complexity.
Our Solutions
Yu An Electronics, in collaboration with CarTTV, introduced a tailored solution using PCB membrane switches for the Smart Car Keyboard. These switches incorporated advanced features to meet the specific challenges posed by the automotive environment. The design focused on providing precise tactile feedback, ensuring accurate inputs for smart car controls. Engineered for durability and resistance to environmental factors, the PCB membrane switches seamlessly integrated technology with reliability. The collaborative design process between Yu An Electronics and CarTTV resulted in a customized solution finely tuned to the requirements of the Smart Car Keyboard. The integration marked a significant improvement in the user interface, combining cutting-edge technology with robust performance.
Customer’s Feedback
Following the implementation of Yu An Electronics’ PCB membrane switches into the Smart Car Keyboard, CarTTV reported a notable enhancement in overall performance and user satisfaction. Users appreciated the precise tactile response, durability, and the switches’ ability to deliver reliable performance in the demanding conditions of a smart car environment. The successful integration set a new standard for smart car interfaces, earning acclaim and paving the way for future innovations in automotive technology.
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