Haiwen Membrane Switch Limited                                                                    Product description

• 
  

• 
  

•      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 Haiwen 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 478ss silver paste, so that it can be low resistance and function well. The rear adhesive is 3M 9448HK.

      

   Substrate 

   

• 
  

• For the production of membrane switch panel substrate of the following: 

• (1) polycarbonate film
  Polycarbonate film great temperature range (-135 ~ 135 ℃), when the temperature or humidity changes, the performance of this material changed little, from 100 to ensure the panel can be various types of equipment under a variety of harsh environment use.
  (2) PVC film
  Poor heat resistance, especially in high temperature conditions, the softening temperature of 59 ℃, less flexible polycarbonate film good. But it has a high elongation (130%), but also because of its low price, it is suitable for use in the general conditions.
  (3) polyester film
  Flexibility and heat resistance are good, the price range of between polycarbonate film and PVC film. But its hard to process into films matt type surface texture, often isolated and the transparent sheet, while the vast majority of the surface of polyester film of plastic printing ink can not get satisfactory results, generally requires the use of a particular special ink.

Product parameter

• 
  
  
  
  
  

   

   

  The main technical parameters of Haiwen membrane switch
  (1) Electrical Properties
  1, operating voltage:	≤ 50VDC
  2, working current:	≤ 100mA
  3 Contact resistance:	0.5 ~ 5Ω
  4 Insulation resistance:	≥ 100MΩ (100VDC)
  5, substrate voltage:	2kDVC
  6, spring time:	≤ 6ms
  7, loop resistance:	50Ω, 150Ω, 350Ω third gear, or the user needs to determine
  8, insulation ink voltage:	100VDC
  (2) Mechanical Properties
  1, reliability, service life:	> 1 million times
  2, closed displacement:	0.1 ~ 0.4mm (no touch-type) 0.4 ~ 1.0mm
  3, health standard for power:	280g Power
  4, Silver migration:	In 55 ℃, humidity 90%, 56 hours later, the second-line between the 10MΩ/50VDC
  5, Silver online no oxidation, no impurities
  6, Silver width	≥ 0.3mm, the smallest interval of 0.3mm, line edges <1 / 3, the line gap of <1 / 4 width
  7, pin spacing standard	2.54 2.50 1.27 1.25mm
  8, lead anti-curvature, with d	10mm steel rod line pressure roller 80 constantly.
  (3) environmental performance
  1, operating temperature:	-40 ℃ ~ +80 ℃
  2, storage temperature:	-40 ℃ ~ +85 ℃ temperature of 95% ± 5%
  3, atmospheric pressure:	86 ~ 106kDa

   

• 
  
  
  

   

Haiwen Membrane Switch Limited                                                               Company Information

      Shenzhen Haiwen Membrane Switch Co., Ltd.(short for Haiwen) , which was founded in 1998. Today Haiwen has factory with more than 1000 sqm,and some advanced manufacturing equpments,testing facilities and instruments .Now we can manufacture many kinds of products . For example,rigid circuit board,flexible circuit board,rigid-flexible board,FFC,membrane switch,membrane keypad,graphic overlay ,nameplate,IMD,touch screen,glue dispenser,rubber keypad,circuit board assembly and others .

     Haiwen does always focus on providing the high quality products and first class service to the market.We do the production strictly as per the ISO9001:2008 requirements.All of our products are RoHS compliant . In addition,all of our products are fully inspected and tested by our quality department .We don't allow any flawed products to be marketed.In China ,we have mature technique,low HR cost,low operatiion cost,so there are more and more overseas companies subcontract their orders to us .

      We looking forward to the long term business cooperation with you ! Welcome you to contact us for any business ! We believe that we will be one of your faithful and creditable business partners in the near future.

     For more details , you can go and visit our website : en.szhaiwen.com

Contact us

Address：3/F Yinjin Industrial Building， Liuxian 2nd Road， 71 Area of Baoan District, Shenzhen 518101, China

添加质检报告

Our Services

• 
  

  •Reply you within 24 hour
  •Sample is free, you just need to bear the shipping costs
  •OEM or ODM is OK
  •Fast delivery

   

• Payment terms:T/T, West Union, 30% advance, the balance paid before shipment please

  Packaging:First put in a polybag per 50 pcs usually, then packed in a big carton;

  According to the clients' requirements for special orders.

• 
  

• 
  

• 
  

• If you need our products,please contact us.
  Looking forward to our further cooperation.
  Any of your requirements will get our prompt attention.