Polyester LED Printing pcb Based Membrane Keypad With Pressure Sensive Adhesive
Key Features of PCB-Based Membrane Keypads
Durability and Robustness: PCB-based keypads are known for their durability, making them suitable for various applications, including industrial automation, medical devices, and consumer electronics .
Customization Options: Manufacturers like Rangviswa offer extensive customization options, including:
- Customized front overlays with various material finishes (matte, glossy, textured).
- Embossing options for buttons and logos.
- Different plating options for the PCB (gold, tin-lead, nickel).
- Tactile or non-tactile feedback options.
Layered Construction: The typical construction of a PCB-based membrane keypad includes several layers:
- Graphic Overlay
- Graphic Adhesive
- Dome Retainer or ESD Mesh
- Spacer Adhesive
- Metal Domes
- PCB (gold or tin plated)
- Back Adhesive .
Applications: These keypads are widely used in various industries, including:
- Medical Devices
- Defense and Military Equipment
- Consumer and Household Appliances
- Gaming Controllers
- Industrial Automation Systems
- Measuring Equipment and Digital Meters .
Compliance and Safety: Many PCB-based membrane keypads are designed to be ROHS compliant, ensuring they meet environmental safety standards
Specification:
| Overlay material ---For front or face overlay | ||||||||
| Polyester | Polycarbonate | |||||||
1 Highly versatile for embossing | 1 wide range of the surface finishes and thicknesses | |||||||
| Embossing --- Graphic overlay or up circuit can be embossed in order to insert metal stainless steel domes for good tactile when press . | ||||||||
| Pedestal embossing | Rim embossing | Pillow embossing | Dim embossing | |||||
| Windows or LCD --- For display functions | ||||||||
| Printed colors windows such like red ,black and so on | Transparent finishes windows | |||||||
| Keys | ||||||||
| Tactile Keys :witch metal domes or Poly domes ,Metal dome with different diameter and pressure kinds | Non-tactile keys: printed silver spot on the circuit | |||||||
| LEDs ---Miniature LEDs ,LED colors :white ,Green ,Red ,Blue ,Yellow ,Orange and others | ||||||||
| EL and Sensors or inductors --- EL can be light any place where where you like ,and sensors can be used as LEDs | ||||||||
| Cables --- is extension of circuit and communication with your device | ||||||||
| Screen printing conductive silver cable | Copper plated cable /Polyimide or FPC | PCB cable | ||||||
| Types of connector --- 1 Zero insertion force(ZIF) with 0.5MM ,1.0MM,1.25MM pitch ;2 Female connector with 2.54MM pitch; 3 Male connector | ||||||||
| Shielding --- For protection function | ||||||||
| Gasket seal/Waterproof :protect the conductors against from the humidity and splashes | EMI/RFI/ESD Shielding: use an Aluminum foil shielding /clear ITO electrical conductive polyester to protect | |||||||
| Rear Adhesive --- Mostly use the 3M double-side mounting glue brand of USA. Also accepted others such like Lohmann and others | ||||||||
| Back plate --- Use in Aluminum ,Polycarbonate ,Acrylic Or PMMA | ||||||||
| Matching color --- PMS or RAL Is best ,CMYK or RGB also can be ok if you can supply PMS Or RAL | ||||||||
| Standard Tolerances :+/-0.2MM | ||||||||
Performance Index
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