Parlex Capacitive Switch Interface Technology

The application of capacitive components using Parlex Polymer Thick Film (PTF) technology has opened up an enhanced area of user interface. Parlex utilizes a polycarbonate or polyester graphic and a populated capacitive circuit interface panel. Contact us today for additional information on how Parlex can manufacture capacitive switch panels for your next appliance project.
 

 Applications:

  • Appliance interface panels for ranges, dishwashers, refrigerators and washers / dryers.
  • Alternative to rigid boards with either glass or injection molded interface panels.

Overview:

  • Cost effective capacitive touch technology.
  • Activation force: 0 grams.
  • Lightweight alternative to glass construction.
  • RoHS compliant construction

 Construction:

  • Interface cover layer (graphic) material:  Polycarbonate or polyester (PET) graphic is laminated to a  populated circuit layer.
  • Spacer Material:  If Light Emitting Diode (LED) indictation is required an adhesive spacer layer will adhere the graphic to the circuit and accommodate the component thickness.
  • PTF Circuit:  Typically multi-layer silver, dielectric and carbon ink systems printed on a 0.125mm PET substrate populated with capacitive components and LEDs. Double-sided circuit designs are an option.
  • Rear Adhesive:  Adherence to the customer housing or moulding using a specific pressure sensitive adhesive, based upon the specifc application requirements

Other considerations:

  • Glass and other materials can be used as an interface cover layer.  
  • Incompatible with metal surrounds or base panels.
  • Integrate capacitive switching at the early stages of design.

At Parlex, we take pride in our ability to meet the diverse needs of our Appliance partners. Contact us today - our engineers are ready to support your needs with Parlex state-of-the-art design services and manufacturing.  For more info on Parlex PTF switch panel technologies, download our technical presentation outlining Parlex capabilities for instrument facepanels and membrane keypads:

- Learn more about Parlex Design and Value Added Services
- View a list of Parlex products and technologies
- See a summary of Parlex Quality Certifications and Manufacturing facilities