移动电话金属圆顶

mobile phone switch, Mylar switch, membrane switch panel : . 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. . 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) Consumer Goods: MP3 players, Digital cameras, Camcorder, Portable CD players, Toys Cordless Phones White Goods: Microwave, Dishwasher, Dryer, Commercial scales, Small appliances Medical Others: Entertainment, Office, Security systems, Industrial, Telecom Handheld instruments . Parameter: 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 ↓ Product Type: 1.Single Layer Dome array; 2.Double Layer Dome array; 3.EMI Printing Dome array; 4.Rubber Glue Dome array;