Csutom Rear Surface Printing ESD Shielding Mebrane Switch Button
With Flat Keys
LECTROSTATIC DISCHARGE
Electrostatic discharge (ESD) is a short but intense flow of
electricity when two electronically charged objects come in
contact. In a device with a membrane switch interface, this can
happen when the user presses down a button. As you can imagine, ESD
can damage sensitive circuitry and other components within the
device.
SOLUTIONS FOR SHIELDING INTERFERENCE
Not every membrane switch requires shielding for EMI, RFI, or ESD.
In some cases, the graphic overlay provides enough of a buffer to
protect the internal components. However, for various reasons –
including application, environment, regulations, and more –
additional shielding is often warranted.
ESD Shielding Membrane:
- The ESD shielding membrane is a thin, conductive layer that is
incorporated into the overall membrane switch assembly.
- This layer is typically made from a material such as metallized
polyester or conductive fabric.
Dissipating Static Electricity:
- When static electricity builds up on the surface of the membrane
switch, the conductive ESD shielding membrane provides a path for
the static charge to be safely dissipated.
- This helps prevent the static electricity from reaching and
potentially damaging the sensitive electronic components within the
switch assembly.
Grounding the ESD Shielding:
- The ESD shielding membrane is typically connected to a ground plane
or ground trace within the membrane switch assembly.
- This grounding connection ensures that the static electricity is
directed away from the sensitive components and safely discharged.
Enhanced Protection:
- The ESD shielding membrane provides an additional layer of
protection for the membrane switch, complementing other design
features that may be in place to mitigate the effects of static
electricity.
- This can include measures such as anti-static coatings, shielding
around the switch components, and proper grounding of the overall
system.
Product Descriptions :
| Overlay material ---For front or face overlay |
| Polyester | Polycarbonate |
1 Highly versatile for embossing
2 Highly resistant for chemicals
3 Better durability
4 For internal and external use | 1 wide range of the surface finishes and thicknesses
2 More cost-effective
3 For internal and external use
4 many Lexan label choose |
| Embossing --- Graphic overlay or up circuit can be embossed in order to insert
metal stainless steel domes for good tactile when press .Leave
space for mechanical keys and provide tactile indications |
| 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 |
Common membrane keypad structure choose :
Electrical Properties:
1, operating voltage: ≤ 50VDC
2, working current: ≤ 100mA
3 Contact resistance: 0.5 ~ 5Ω
4 Insulation resistance: ≥ 100MΩ (100VDC)
5, substrate voltage: 2kDVC
6, spring time: ≤ 6ms
7, loop resistance: 60Ω
8, insulation ink voltage: 100VDC
FEATURES
Flexible
Highly durable
Superior quality
Advanced electronics
Less disruptive interference
Light weight
Optimum strength
High functionality
Low profile surface printing
Excellent abrasion resistance
FAQ:
Q1. What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown
cartons. If you have legally registered patent, we can pack the
goods in your branded boxes after getting your authorization
letters.
Q2. What is your terms of payment?
A: T/T 50% as deposit, and 50% before delivery. We'll show you the
photos of the products and packages before you pay the balance.
Q3. What is your terms of delivery?
A: EXW, FOB,
Q4. How about your delivery time?
A: Generally, it will take 10 to 15 days after receiving your
advance payment. The specific delivery time depends
on the items and the quantity of your order.
Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We
can build the molds and fixtures.
Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but
the customers have to pay the sample cost and
the courier cost.
Q7. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery
Q8: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our
customers benefit ;
2. We respect every customer as our friend and we sincerely do
business and make friends with them, no matter where they come
from.
