TitleProduct

Silicone Rubber LED Backlit Membrane Switch Keypads for Air Conditioner

  • Price:

    Negotiable

  • minimum:

  • Total supply:

  • Delivery term:

    The date of payment from buyers deliver within days

  • seat:

    Shanghai

  • Validity to:

    Long-term effective

  • Last update:

    2017-12-11 18:52

  • Browse the number:

    198

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Company Profile

Dong Guan Dong Chen Electronics., Ltd.

By certification [File Integrity]

Contact:Mr. Chang(Mr.)  

Email:

Telephone:

Phone:

Area:Shanghai

Address:Shanghai

Website: http://hongbochn.jstianchuang.com/

Product Details


China manufacturer of Custom Embossed Membrane Switch for audio equipment



1.Main Material and Technical Specifications:
Description Technical Capabilities
Max. Size: 1200mm*1000mm
Overlay Material: PET: Auto-type
Autotex F150, F200, F280, V150, V200, V280, XEV150, XEF200
Autoflex EBG130, EBG180, EBG250, EBA130, EBA130, EBA250
Autostat CT3, CT4, CT5, CT7
DuPont etc.
PC: GE LEXAN-8010 8B35 8B35F HP92S HP40 FR700 FR60
Spacer:  Double side adhesive tape: 3M, TESA, SEKISUI, Domestic adhesive tape
Back Adhesive: 3M (mainly), Others
Solver Paste:  CHANGSUNG: CSP-3136, CSP-5150;
ACHESON: DE 725A (6S-61), ED 427SS, ED979SS, ED976SS, HV;
FUJIKURA AND OTTI
Oil Ink: SEIKO, JUJO, DUBUIT, PROELL, NORCOTE UV
Carbon Paste: FUJIKURA, ACHESON ED581SS, OTTI
6 Layers Poly dome Type Membrane Switch Structure Overlay + Spacer + Dome Retainer + Spacer + Circuit Layer + Back Adhesive
4 Layers Poly dome Type Membrane Switch Structure Overlay + Spacer + Circuit + Back Adhesive
Contact Resistance 0.5-10 Ω
Insulation resistance ≥10 MΩ
Base Material Voltage Durable 2000 V DC
Bounce Time ≤ 5 ms
Working Current ≤100 MA
Working Voltage ≤ 50 V DC
Life ≥ 1,000,000 times
Key Travel Flat type: 0.05mm-0.5mm, Tactile Type: 0.1-1.5mm
Working Temperature -40 ºC - +80 ºC
Actuation Force 20-550 g
Storage Condition  Temperature: -40 ºC - +85 ºC, Humidity: ≤98% RH
PET Circuit Tail Flexible Feature 180° to any angle
 

2.Basic Knowledge
What is a "Membrane Switch"?
A membrane switch is a printed electronic circuit that uses pressure to open and close a circuit. The membrane switch circuitry is most often screen printed using conductive inks, which are typically made of silver, carbon, and/or graphite.
Membrane switches are part of a range of devices considered to be user interfaces (also called operator interfaces, or man-machine interfaces) along with display-based touch screens, and mechanical switches such as push-button, toggle, rocker, and slide switches. The ultimate purpose of a membrane switch is to serve as the interface between man and machine, enabling an operator to communicate with a piece of equipment, instrument, or machinery.

Features & benefits of membrane switches include:
Completely sealed surface - easily cleaned and sterilized.
Low Profile - no crevices that can trap contaminants.
A cost-effective alternative - less costly than rubber keypad assemblies and capacitive touch keypads.
Thin profile - saves valuable space in your product design.
Easy to interface with existing controllers - no special electronics required, as with touch screens.
Versatile graphic interface - overlays can be screen or digitally printed with stunning, photo-quality
graphic effects.
Protection by design - Easier to protect from UV radiation than rubber keypads.
Water-resistant designs - meets NEMA 4 and IP 67 specifications. How Are Membrane Switches Constructed?Membrane switches are essentially a sandwich of thin layers that are bonded together using pressure sensitive adhesives. Depending on the application requirements, a membrane switch will consist of as few as 4, and as many as 9 layers. In contrast to mechanical switches, membrane switches offer the advantage of lower cost, they consume less design space with their low profile, are easy to clean, and they offer a sleeker, ergonomic, and aesthetically pleasing appearance.
 
The visible top layer of a membrane switch is the graphic overlay, with printed circuitry underneath the overlay. The circuitry can also incorporate different layers such as polyester (silver flex), polyimide (copper flex), and rigid PCB layers. Activation of a switch occurs when a printed shorting pad or metal dome makes contact with the bottom circuit layer thus, closing the circuit.
 
What Industries Use Membrane Switches?
Membrane switches can be found in a variety of different industries. Medical instrumentation and laboratory equipment are ideal markets for membrane switches. These switches can be designed to be sealed from moisture and contaminants and with anti-microbial coatings to resist bacterial growth and harsh chemicals. Membrane switches are also utilized in industries such as electronic test and telecommunication networking equipment. Industrial controls and fitness equipment are also industries where membrane switches are the user interface of choice.
 

 3. About Us
Shanghai Hombo Industrial Co., Ltd.
Shanghai Hombo Industrial Co., Ltd. is a custom manufacturer of special printing products which include membrane switches, Overlays & Panels, nameplates and sticky labels for OEMs in industries ranging from household electric appliance, medical equipment, industrial control, telecommunication equipment and electronic instruments. 
Our capabilities include digital printing, automatic and semi-automatic screen printing, prototyping, inspection, production assembly, in circuit and functional testing, RF/EMI shielding, embossing, texturing, hard coating, graphic design and development assistance, top and sub surface printing, and backlit graphics are available along with multiple termination options.
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4. Contact Us 
Mr. Jason Chang 
 Foreign Trade Manager
 
Mobile: +86 159 0052 6263 
  
   
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Shanghai Hombo Industrial Co., Ltd.
Add: 9th Floor, No.35, Lane 800, Meijiabang Rord, Songjiang District, 
Shanghai 201600, China
Tel: +86 21 57791111 Fax: +86 21 67898089
Web: http://www.hombochina.com