OEM 3M Adhesive Membrane Switch Keypad, Flat Membrane Switch Components of a Membrane Switch
Graphic Overlay Graphic overlays are a thin film with a printed layer that acts as
the product’s top surface. They can be decorative or simple in
design. You can emboss graphic overlays, or the graphic can help
indicate switch locations. Keypads Keypads are a set of buttons arranged in a block that become the
interface of products. Keypads offer a wide variety of options to
achieve the desired user experience. Common keypad materials are: Compression-molded elastomer materials
Hard keys mounted in a bezel
A combination of hard key and elastomers Adhesive Pressure-sensitive adhesives are thin layers of tape that adhere
domes to the circuit. Adhesives can help protect the switch from
debris, provide a moisture barrier, or other environmental factors. Metal Domes Metal domes are normally-open contacts that, when pressed, complete
the circuit. Metal domes, also known as tactile domes, create
tactile feedback for the user and come in a wide variety of sizes,
styles, and forces. Domes have life ratings of up to 10 million
presses. Snaptron can produce custom domes with minimal lead times. - Backlit metal dome
Metal dome with a built-in actuator -
- Dual-action metal dome
Spacers/Retainers A retaining pocket can hold a dome in position without the need for
an adhesive layer. A spacer layer provides space for the dome under
the graphic overlay. It can also incorporate venting channels that
allow air to move under the graphic overlay when pressing various
switches. Spacers eliminate the need to vent each switch pocket
through the circuit board. [tactile domes with spacer]
Spacer layer with metal domes in the pockets Circuit The circuit can be single-sided, double-sided, or even flexible in
some applications, also known as a flex circuit. Domes are
positioned on the circuit pads, and when depressed, create contact
closure. Metals domes are placed on top of the contact padsMetal domes are just one of the many components of a switch that
together make a complex human-machine interface.
Applications:
- home appliances and device
- Security Protection systems with Cipher Code
- Various industry control keypad panel
- consumer electronics and 3C item
- Thrapy medical system and device
- Various automtic machine control keypad
- Telecommunication Equipment
- Medical Equipment
- Industrial Equipment
- Household Equipment
- Remote Controller
- Control system
-
Our Advantage: - We Focus in membrane switch and related items.
- Strong R&D capability
- Stable in quality
- Competitive price
- Short Lead time for samples and Mass production
- Whole solution design available
| Items | Silver Printed Circuit
| Copper Etched FPC Circuit
| | Material | PET (Polyester) | Copper | | Conductor | Printed silver | Copper | | Contact Fingers | Silver and Carbon | Gold plated | | Contact Buttons Pads | Silver | Gold plated | | Life & Reliability | normal | good | | Stability | normal | good | | Resistance | low | Very low | | Cost | low | high | | Lead Time | 2-3 days | 7-10 days | | Pitch | 0.5mm (not suggested), 1.0mm,1.27mm, 2.54mm | 0.5mm, 1.0mm,1.27mm, 2.54mm |
| 1. Electrical Properties | Membrane Switch | | Electrical Level: | 35V(DC), 100mA,1W | | Contact Resistance: | 10Ω~500 Ω | | Insulation Resistance: | 100MΩ/100V | | Dielectrics Voltage-resistance: | 250VRms(50~60Hz 1min) | | Chattering Time: | ≤ 5ms | | Life Time: | Flat type ≥ 5,000,000; Tactile type ≥ 1,000,000 | | Tail Folding: | R>1,180 | | | | | 2. Mechanical Properties | | | Operating Force: | Flat type 57~284g (2~10oz); Tactile type 170~397g(6~14oz) | | Switch Stroke: | Flat type 0.1~0.5mm; Tactile type 0.6~1.5mm | | | | | 3. Environmental and Storage Conditions | | | Operation Temperature: | -40°C ~ +80°C | | Storage Temperature: | -40°C ~ +80°C | | Humidity: | 40°C, 90%~95%, 240 hours |
FAQ: Q1: Are you a factory or trade company?
A : Lunfeng is membrane switch/ graphic overlay
manufacturer/factory. We pecialize in memrbane switch for 26 years.
Q2 : Is my switch file safe if I send it to you for manufacturing?
A : We respect customer's design authority and will never
manufacture membrane switch/ graphic overlay for someone else
without
your permission. NDA is acceptable.
Q3 : Can you copy membrane switch/ graphic overlay samples without
file?
A : Yes, we can clone membrane switch/ graphic overlay according to
your samples.
Q4 : What payment do you accept ?
A : TT/ Western Union.
Q5 : What's your shipping way ?
A : 1. We have our own forwarder to ship goods by DHL, UPS, FEDEX,
TNT, EMS.
2. If you have your own forwarder, we can cooperate with them.
Q6 : How about the MOQ?
A : 1 pcs, but normally 5 pcs samples for memrbane switch, 10 pcs
for membrane overlay.
Q7 : What's your main market?
A : Europe, USA, Brazil, Russia, Turkey, Iran, Austrialia,
Singapore... |
