Back Light Membrane Switch With 3M 468 Adhesive and LFG
Membrane switch with LGF :
1. LGF is a thinner construction, without limited to devices
thickness.
2. LGF has a limited impact on the tactile feel of buttons.
3. LGF can provide even backlight across larger and small areas.
4. Reliability and long lifetime, Low-Cost
Efficient power consumption and operating on lower voltage
5. Colors: White, Blue, Red, Green is a common choice.
Metal domes added to the membrane switch provide the upper circuit
layer. That contributes the keys to visual, audible, and tactile
feedback. The switch can performance well in high temperature
environment. The product are mainly used as control keypad for
movable electric appliances. Also, keypad of Lunfeng can be
customized based on customer’s design such as button icons, colors
etc. Transparent window is manufactured with UV ink. Selecting
Autotype F150 matte PET to screen print the overlay appears elegant
and colorful. The circuits are made of Acheson ED-820B silver
paste, so that it can be low resistance and function well. The rear
adhesive is 3M 468.
Membrane switch flexible polycarbonate or polyester film printed
with conductive paste made of the switch contact circuit is a
contact switch.
Membrane switch has the advantage of the whole flat, thin shape,
quality, small, dust-proof, good, good water resistance, is a
semi-enclosed structure. In addition, the panel design, and great
freedom of choice of colors. Positive range of applications of
desktop computers, copiers, fax machines, toys, square computer,
word processor and other areas of expansion.
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
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
| 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
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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 |
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2.Mechanical Properties |
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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 |
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3.Environmental and Storage Conditions |
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Operation Temperature: | -40°C ~ +80°C |
Storage Temperature: | -40°C ~ +80°C |
Humidity: | 40°C, 90%~95%, 240 hours
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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...
