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metal dome;
1.Material :Stainless steel
2.Avaliable for enhancing tactile feeling
3.Carrier: PET
4.Wth or without single side adhesive spacer
5.With silicone adhesive for rubber keypads
6.More than 10,000,000 life cycles
7.Avaliable in various metal dome: round, triangle, four Legs and oblong shape
8.Customized designs are welcome
Thickness | 0.22~0.45mm |
| Travel | 0.16~0.26mm |
| Operating force | (130-230) ±30gf |
| Hand sense | (30~65)% ±15% |
| salt spray test | 35°±2°,(5±1)% ,48H |
| work temperature | -30°C~+70°C |
| contact resistance | ≤1Ω |
| tolerance | ±0.15mm |
| life cycle | 1 million |
Product Introduction:
1.Metal dome array is a kind of PET sheet that carries contacts. It is applied to to function as switches of mobile phones and electric home appliances. The dome array (metal dome array)is the most cost effective solution for a simple switch with a superior tactile interface between your equipment and the user. Compared to the membrane polyester switch which was formerly used, it gives good click-feeling. It also gives much longer lasting life span compared to poly dome sheets. It also takes place of down going productivity of tact switches with its potential productivity.
2.contacts on the arrays (sheets) are positioned over the contact point of PCBs. When a dome is pressed, the center of it contacts to the PCB and let the electric current flow through. This is how metal dome arrays work.
3.dign considerations include dome size, material composition, thickness, and mating circuit design which determine the characteristics of tactile feel, actuation force, actuation travel and contact resistance. We can supply different sizes and variations of metal domes, and has extensive experience in metal dome array applications to assist in optimizing designs for every requirement
Applications:
Mobile phone market Handheld / PDA GPS systems Point of Sale Terminals Automotive: Telematics, Window controls, Seat controls & Steering wheel systems Remote Keyless Entry system
membrane keypad used in mobile phone