Ploy dome multi color press keys membrane switch panel keyboard with 3M467 adhesive-Unigreat

Overview

Quick Details

Place of Origin:Guangdong, China

Brand Name:Unigreat

Model Number:JYS-N-200117

Application:Home Appliance

Keypad Button Material:Metal

Button Color:Customized

Button Option:Flat or Emboss

Emboss Type:Pillow/Dome/Border Emboss

Dome Type:Mylar/Poly Dome, Metal Dome

Overlay Color:Pantone or RAL-color Number

Back Adhesive:3M467,3M468,3M9080 etc.

Material:PET(polyester)/PC(polycarbonate)

Surface Finish:Glossy or Matte

LED Color:White/Green/Red/Customized

Rear Adhesive:3M467, 3M468, 3M9080 etc...

Ploy dome multi color press keys membrane switch panel keyboard with 3M467 adhesive

Product Description

What is Membrane Switch?

The membrane switch is a momentary switching device that is manufactured by using a series of flexible layers of polymer films and adhesives. The top layer, called a graphic overlay, is manufactured by printing on the down surface of transparent polyester or polycarbonate film. Membrane switches can be constructed of multiple circuit layers, and more optimized graphic design features, such as domed key embossing. Designs that are more complex require more material layers for proper construction and reliable operation. Membrane switches, when combined with components such as a tactile dome, graphic overlay, or integrated LEDs or resistors can provide the designer with virtually limitless capabilities to create the ideal custom user interface for their products.

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Basic Properties .

Electrical Properties:
Rated Voltage	≤50V DC
Rated Current	≤ 100mA
Operating Power	≤1W
Insulation Resistance	≥100MΩ (250V DC)
Loop Resistance	10Ω~2kΩ (based on the design)
Contact Resistance	0.5 ~ 5Ω
Wire Lead Resistance	<1Ω/cm
Base Material Voltage Withstand	1500V DC
Mechanical Properties:
Life Expectancy	Flat type ≥ 5 million times, Tactile type ≥ 1 million times
Operation Force	Flat Type 57-284g ,Tactile Type 170-397g
Dome Rebound Time	≤6ms
Tail Bending Performance	≤180°
Switch Stroke	Flat 0.1~0.5mm,Tactile 0.6~1.5mm
Vibration	20G's max.
Thickness	0.7~1.5 mm
Environmental Properties:
Operation Temperature	-40°C to +80°C (-40°to 176°F)
Storage Temperature	-40°C to +85°C (-40°to 185°F)
Atmospheric Pressure	86 ~ 106 kPa
Humidity	+40°C, 90%~95%RH for 240 Hours

The Structure and Working Principle of Membrane Switch.

1.Graphic Overlay – PET/PC is usually the material of choice due to its fantastic chemical resistance and flex property . UNIGREAT can do digital printing, screen-printing, or apply both methods to ensure you get the right colors, textures and finish your design requirements.

2.Overlay Adhesive – This adhesive layer stick the graphic overlay to the top circuit layer, and is usually an acrylic adhesive. The material is same with the fourth layer. Only the thickness maybe different according to the actual situation.

3.Top Circuit Layer – The material of this layer is specific. Is is a 0.1mm thickness thermostable PET film printed with conductive silver ink and also dielectric oil, which used for fastening metal domes.

4.Circuit Spacer – This layer separates the top circuit from the bottom circuit so that switch remains normally break until the keypad is pressed. The circuit spacer is a polyester spacer with adhesive on both sides.

5.Lower Circuit Layer – This layer is a 0.1mm--0.25mm thickness thermostable PET film printed with conductive silver ink and also dielectric oil. This layer terminates as a flexible tail that serves as an interconnector to controller PCBs or other IC.

6.Rear Adhesive – This adhesive layer bonds the entire membrane switch to the product surface, housing, or to a rigid support panel. UNIGREAT can use the proper adhesive type and thickness to bond your membrane switch to your equipment.

Other Features

Other Features
Artwork/Drawings Format	CorelDraw, Adobe Illustrator AI, AutoCAD
Tail/Pin/Circuit Layout	Based on customers detailed requests
Antistatic Shielding	Can be added For Protection
Connector	Female/Male Connectors or ZIF Connector
Rear Adhesive:	3M467, 3M468, 3M9080 etc…
Cables	Extension of Circuit and Connect with your Device
Printing Method	Silk Screen Printing/Digital printing
Windows/Lens Coating	Can be added
Certificate	ISO9001 RoHS CE SGS

Ploy dome multi color press keys membrane switch panel keyboard with 3M467 adhesive

Production ProcessQuality Control

Application

Membrane switch because of its fantastic Electrical Properties, Mechanical Properties and Environmental Properties, it is widely used in Smart Home Appliances, Office Equipment, Medical Equipment, Automobile and Industrial Equipment.

Packaging & Shipping

Packaging: Normally a certain amount of products into poly bag, then packed into carton. Or customized packed.
Shipping: Via Air Express like DHL UPS FedEx TNT, or Via Sea shipping.

Customized Solution

Our Advantages:

1.We are a factory with total about 488 staff, 200 thousands square meter. Throughout production process our quality is strictly being controlled with detailed record. All of our machines were upgraded ONE year ago and brand new.

2.With more than 18 years experiences of 10 Designers and 18 Engineers, so customized product service is No problem, we can offer you the best solutions.

3.You will get fairly competitive prices with fantastic quality products. Also the packaging, delivery time and after-sales services are guaranteed, we have a powerful and professional team.