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Place of Origin : China
Brand Name : Guanghongda
Model Number : GHD194006
Certification : ROHS compliance
MOQ : 500-999 Pieces
Price : $0.25
Application : Telecommunication Equipment
Keypad Button Material : PET
Metal Dome Material : SUS301
Total Height : 0.14~0.5mm
Metal dome Force : 100~600gf , +/-30gf
click ratio : >30%
Lifetime : 300k~ 2kk hits
Salt sprary Chamber Testing Conditions : -40 ~ +70 degrees
Reliable Routine Test : 55+/-2 degrees , R.H. 95% , 48H
Size tolerance : +/-0.1mm
OEM service : acceptable
Selling Units : Single item
Single package size : 10X7X0.2 cm
Single gross weight : 0.100 kg
Package Type : 1) packed by PET bag ( Full package qty : 200 sheet / PET bag ) Carton package, inner 4 -corner wrap by bubble foam prevent from damage during the transporation
 


 What is LGF Dome Array and How does it work ? 
 
 LGF metal dome array , which full name is Light Guide Film , it is a new design . which used to replace LED in function , in comparsion with LED , lighting Uniformity; When we add a LGF on current normal double layer or EMI dome array, it becomes a LGF dome array. It can achieve great result of light distribution.see from the design , the light under keypad is coming from the LED on PCB motherboard. We need to put about 8-10 pieces LED on each board, but if the design changed to use LGF, then we can save several LED, as well as SMT fee.

What is the LGF DESIGN PRINCIPLE & What is the Advantage ?
 
 LGF, at least one surface out of front and rear surfaces of the light guide film is formed with a pattern such that density increases as distanced from a light source to allow light to be uniformly supplied to the keypad, or is concentratively formed with a pattern at a particular region of the light guide film to allow the light to be concentratively supplied to a particular region of the keypad.

PRODUCT PHOTOGRAP

| Major Technical Parameters & Advantages of Metal Dome Array | ||
| 
 Item | 
 Description | TECHNICAL INDEX | 
| 1 | 
 LONG LIFE-TIME | Round ,Oval, four - legged, triangular, rectangular, three - point side, irregular | 
| Stainless Steel ,Nickel Plating ,Silver Plating & gold Plating | ||
| Dimple Numbers : 0/1/3/4/5 dimple | ||
| LIFE-TIME : 300 ~3000 Thousand Times | ||
| In compare of initial value , The change rate <30% after 1M press-test | ||
| 2 | 
 Click % | Force:100gf~450gf, Tolerance : ±20gf | 
| Normal Condition | ||
| 3 | 
 Stroke | Customize in accordance with Customer ‘s requirement | 
| 0.12~0.6mm ,Spec. various by different METAL DOME | ||
| 4 | Dimension Tolerance | Position dimension tolerance : + /- 0.1mm | 
| 5 | Good Weatherproof Resistance | 
 Under the conditions of 55±2℃,R.H.95% , Replacement 24H , and then resume 2H under the normal room temperature | 
| 6 | Good Corrosion Resistance | High Temperature can bear : +70℃ Lower Temperature can bear : -40℃ | 
| 7 | Tape Adhesive Test | 0.6↑(Unit:kgf/inch) | 
| 8 | 
 Stable Tape Shrinkage rate | MD(%):0.5 ↓ CD(%):0.3 ↓ | 
| (Unit:100℃*40mins) | ||
| 9 | 
 Small Instantaneous Contact Resistance | (Nickel Plating ) <1Ω, ( Stainless Steel )<3Ω | 
| 10 | 
 Total Thickness of Base materials | 0.05mm,0.075mm,0.1mm,0.125mm,0.15mm; Normal Thickness Spec. | 
| 
 | ||
| 11 | Light-Guide-film Uniformity | >75% | 


 
 
Q1: Are you Trading company or manufacturer ?
A: We are a Professional Trading & Manufacturer Integrated .
Q2 : Can you offer OEM Service ?
A: Surely Okay , we have Seasoned OEM service experience .
Q3: what is the Lead time of sample ?
A : It takes 2-7working days depends .
Q4: How fast can i get the Quotation ?
A: 30mins ~ 24Hours depends .
Please do not hesitate to contact with us , if you have any inquires .
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