Screen Printing Membrane Switch Types Silver Conductive Circuit With 1.25MM Pitch

Screen Printing Membrane Switch Types Silver Conductive Circuit With 1.25MM Pitch

Membrane switches are versatile and widely used in various applications, offering different types based on design and functionality. Here are the main types:

1. Dome Switches:

   • Utilize a dome-shaped metal or polymer dome that collapses when pressed.
   • Provide tactile feedback and are often used in consumer electronics.

2. Non-tactile Membrane Switches:

   • Flat and require no physical movement to activate.
   • Commonly used in applications where space is limited, such as control panels.

3. Tactile Membrane Switches:

   • Incorporate a tactile element that provides feedback when pressed.
   • Often used in devices where user interaction is important.

4. Graphic Overlay:

   • Includes printed graphics on the surface for user guidance.
   • Can be integrated with various switch types for enhanced usability.

5. Illuminated Membrane Switches:

   • Feature backlighting or LED integration for visibility in low-light conditions.
   • Ideal for control panels used in dark environments.

6. Customized Membrane Switches:

   • Tailored to specific requirements, including size, shape, and functionality.
   • Often used in specialized industrial or medical applications.

7. Environmental Sealing:

   • Designed to be water-resistant or dustproof, depending on the application.
   • Common in outdoor or harsh environments.

Specification:

1)Material (for front or face overlay)

Polyester:

1.Highly versatile for embossing

2.Highly resistant to chemicals

3.Better durability

4.For internal and external use, UV resistance

Polycarbonate:

1.Different surface(Glossy, Matt) and thickness(From 0.12mm~2mm)

2. cost-effective in price

3.For internal and external use

2) Embossing

Rim embossing/pillow embossing/dimple embossing

Graphic overlays can be embossed in order to insert domes/LED, leave space for mechanical keys/LED and provide tactile indications and better tactile feeling.

3)Windows(for display function)

1. print different colors windows, As transparent grey/Red/green window for display

2. Clear/Transparent window for LCD display

2. Matt/semi-transparent window for LED

4)Keys/buttons

Tactile keys---with metal dome or poly dome

Non-tactile--silver printing dots with flat key

5) Embeded LEDs

Small, brilliant lights only about 0.02’’ in height. Avaliable in several vibrant colors.

LED colors: white, yellow, orange, green, red, or double colors LED.

6)Cable

It is an extension of the printed circuit and is used to communicate with your device.

7)Types of connector

1.Zero insertion force (ZIF) connector; 2.Female connector; 3.male connector

8) EMI / RFI / ESD Shielding

use an aluminum foil shielding / a clear ITO electrical conductive polyester

9)Adhesive

mostly used are 3M-double-side glue

10)Backplate-

in aluminum, polycarbonate, acrylic, PCB

Product index:

Operating voltage: 35V DC

Operating current: 100mA 1W

Contact resistance: < 100 Ohms

Open circuit resistance: ≥ 10MΩ at 100V

Storage temperature: Flat/Metal dome:-40°cto +80°c

Life expectancy Flat type≥5,000,000 times Tactile type≥1,000,000 times

Contact bounce: 5 to 30ms

Actuation force tolerance: +/- 20 to 45g

Tactile ratio: FC > 40%

Operating humidity: up to 95% RH

Female, male connector, solder pins and heat seal connectors are available

About Taida.pdf


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