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PET 0.188 Switch Type Membrane LGF 3M9090 Waterproof Flexible Membrane Switches

Basic Information
Place of Origin: Shenzhen, China
Brand Name: Lunfeng
Certification: ISO9001:2015
Model Number: BMS-017
Minimum Order Quantity: 1 piece
Price: Negotiable
Packaging Details: First put into a polybag, then paked into a carton. According to clients' special requirements.
Delivery Time: 7-25 working days, To be negotiated
Payment Terms: T/T, Western Union
Supply Ability: 500000 Piece/Pieces per Month
Product Name: Back Light Membrane Switch With Water-proof And LGF Design Used On: Thrapy Medical System And Device
Color: Pantone Or RAL Color, Blue, Gray, Black Key Material: PET 0.188 PET
Rear Adhesive: 3M9090 300LSE Feature: Metal Domes, Leds
Key Option: Tactile Key Material: PET PC PVC
Printing: Screen Printing,Screen Printing And 3D Digital Pringting Connector: 2.54mm Female Connector Or 1mm ZIF Connector
High Light:

PET 0.188 switch type membrane


LGF switch type membrane


3M9090 waterproof flexible membrane switches

Back Light Membrane Switch with water-proof and LGF design



As we see the technology evolve, consumers across industries are looking for thinner and advanced lighting solutions. They want the backlighting membrane without all the additional hassle. Engineers are working hard to come up with solutions that are as effective as the LGF membrane switch.


After the visible shift towards the Human Machine Interface designs incorporating backlighting systems require sophisticated and advanced lighting techniques. Engineers are trying to design technologies that could fill the purpose without compromising on quality and are cost-effective.

At the moment, the best option we have when it comes to backlighting membrane switches is the LGF. It is the perfect solution for uniform lighting, backlight areas, nearness to backlit areas, multiple colors, and low profile.


In this blog post, we will be focusing on the LFG technology and along with other custom membrane switch backlighting options.



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.


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
* 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:


Dielectrics Voltage-resistance:

250VRms(50~60Hz 1min)

Chattering Time:

≤ 5ms

Life Time:

Flat type ≥ 5,000,000; Tactile type ≥ 1,000,000

Tail Folding:




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


40°C, 90%~95%, 240 hours





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...

PET 0.188 Switch Type Membrane LGF 3M9090 Waterproof Flexible Membrane Switches 0

PET 0.188 Switch Type Membrane LGF 3M9090 Waterproof Flexible Membrane Switches 1

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Contact Details
Sales Manager

Phone Number : +8613662697476

WhatsApp : +8613662697476