Shenzhen Lunfeng Technology Co., Ltd
Lunfeng 26 years dedicated to achieve brand value !
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Membrane Switch Overlay with metal dome and Shielding circuit
Feature:
1. Membrane keypad with LED windows
2. Membrane Keypad with shielding
3. Membrane keypad with LCD window
4. Overlay Materials: Autotype Polyester
5. Rear Adhesive: 3M 467MP, 3M 468MP, etc.
6. Standard Tolerances: +/- 0.10 inch.
7. Matching color: Pantone and RAL color matching system.
8. Tail, pin and circuit layout: Subject to customer's detailed requests.
9. Unit price: Negotiable
10. Materials: Textured PC, gloss PC with matte finish, autotype PET and PVC
11. LED windows: Clear or translucent with all colors
12. Embossed keys: Poly dome and rim
13. Metal dome: Brand of nicomatic and innovan, nickel and gold plated
14. Tail: With mylar and UV
15. Connector: Nicomatic, fci, molex and zif
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 |
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 |
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...
