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| Categories | Capacitive Membrane Keypad | 
|---|---|
| Brand Name: | Lunfeng | 
| Model Number: | CMK023 | 
| Certification: | ISO9001:2015 | 
| Place of Origin: | Shenzhen, China | 
| MOQ: | 1 piece | 
| Price: | Negotiable | 
| Payment Terms: | T/T, Western Union | 
| Supply Ability: | 500000 Piece/Pieces per Month | 
| Delivery Time: | 7-25 working days, To be negotiated | 
| Packaging Details: | First put into a polybag, then paked into a carton. According to clients' special requirements. | 
| Product name: | Capacitive Membrane Keypad Capacitive switch with LCD window | 
| Used on: | Various industry control keypad panel | 
| Colors: | Pantone/ RAL color | 
| Material: | PET glossy or matte surface | 
| Rear adhesive: | 3M467, 3M468, 3M9080 | 
| Feature: | PET circuit, metal dome, LED | 
| switch type: | Capacitive Membrane Overlay | 
| Size: | Customized Size, round | 
| Company Info. | 
| Shenzhen Lunfeng Technology Co., Ltd | 
| Verified Supplier | 
| View Contact Details | 
| Product List | 
Capacitive Membrane Keypad Capacitive switch with LCD window
Capacitive Membrane Keypad consists of one or more capacitive
buttons. The capacitive touch buttons/sensors can be printed on a
polyester film using conductive ink, or can be copper pads on a
PCB. These sensors are connected to the IC. When a button is
pressed, the IC measures the increase in capacitance and triggers a
response.
The main advantage of capacitive touch keypads are that there are
no mechanical moving parts, which will eventually wear out. These
capacitive sensors are placed underneath any non-conductive overlay
material such as AR-1 Acrylic, thick polyester and hardcoated
polycarbonate, and ABS Plastic, making them virtually
indestructible. This construction is also very easy to clean, which
makes it a good choice for medical applications.
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
* Telecommunication Equipment
* Medical Equipment
* Industrial Equipment
* Household Equipment
* Remote Controller
* Control system
| 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...



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