240gm Trip Force 3 Contact Domes Membrane Keypad Manufacturer With
ROHS Compliant
In a membrane switch, the contact domes are a crucial component
that enable the switching functionality. The contact domes are
small, dome-shaped conductive elements that are positioned between
the two conductive layers of the membrane switch.
Here's how the contact domes work in a membrane switch:
Key Features to Look For
- Size and Shape Variability: Ensure the manufacturer can create keypads in various sizes and
shapes.
- Customization Options: Many manufacturers offer custom designs tailored to specific
applications.
- Durability: Look for keypads made with robust materials to withstand wear and
tear.
- Water and Dust Resistance: IP-rated keypads can offer protection against environmental
factors.
- Backlighting: If visibility in low light is essential, check for backlit
options.
The contact domes are typically made of a conductive metal, such as
stainless steel or polyester, and are designed to provide a tactile
feedback sensation to the user when the key is pressed.
The design and properties of the contact domes can have a
significant impact on the overall performance and feel of the
membrane switch. Key factors include:
- Dome height and shape: Affects the tactile feedback and actuation
force required to register a key press.
- Dome material: Impacts the durability, flexibility, and
conductivity of the contact domes.
- Dome spacing: Determines the key travel distance and overall
responsiveness of the membrane switch.
By carefully engineering the contact domes, manufacturers can
optimize the membrane switch's performance, providing users with a
comfortable, reliable, and responsive typing or input experience.
Common membrane keypad structure choose :
Other photo show :
Mechanical Properties :
1, reliability, service life: > 1 million times
2, closed displacement: 0.1 ~ 0.4mm (no touch-type) 0.4 ~ 1.0mm
3, health standard for power: 280g Power
4,Silvermigration: In 55 ℃, humidity 90%, 56 hours later, the
second-line between the 10MΩ/50VDC
5, Silver online no oxidation, no impurities
6, Silver width
≥ 0.3mm, the smallest interval of 0.3mm, line edges <1 / 3,
the line gap of <1 / 4 width
7, pin spacing standard 1.00mm
8, lead anti-curvature, 10mm steel rod line pressure roller 80
constantly.
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, CFR, CIF, DDU.
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.
