1.have the patent 2.silica plunger and metal dome come in one part 3.make the keyboard thinner...

Mobile phone metal keyboard:

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.

Related Searches: metal dome array ,  mobile phone switch ,  mobile keypadSee more Metal Dome array ,  mobile phone switch ,  mobile keypad products from this supplier.

 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 (RKE) 

Item	Parameter
Life	1000000 cycles
Scope of Force	160gf 180 gf 250 gf
Click Ratio	50±14%
Tolerance of Force	±25gf
ESD Resistance	2Ω
Touch Resistance	1Ω
Travel	0.22mm
Total Height	0.28mm
Pastern Minification	MD(%):0.5 CD(%):0.3 ↓

mobile phone metal keyboard in telecommunications/metal dome,PET keypad