Cross metal dome/ quadrangle metal dome/ button metal dome, which is located in the conductive part of PCB, when is pressed, the center point of metal dome contacts to the PCB and looping-in, the products is working normal when current passing. It is made with stainless steel, belong switch, have good conductivity and hand feeling. Because the feature of resilience, it used in FPCB, RPCB and membrane switch. Mainly applied in mobile phone, membrane switch, cordless telephone, electronic dictionaries, instrument control panels, nameplates, digital cameras, game devices, electronic gifts, and other electronic products.
Cross metal dome have four models: no point metal dome, point metal dome, middle string hole metal dome, rhombus metal dome.
中穿孔鍋?zhàn)衅ù资中五佔(zhàn)衅?/font>,使用這種中穿孔鍋?zhàn)衅ù资中五佔(zhàn)衅?/font>, 是把LED燈放鍋?zhàn)衅虚g, 當(dāng)按下鍋?zhàn)衅瑫r線路導(dǎo)通, LED燈發(fā)光, 而這種中穿孔鍋?zhàn)衅ù资中五佔(zhàn)衅┎粫浩鹊絃ED燈, 這就是串孔之處。同??资?.0mm, 也可跟據(jù)客戶需求,進(jìn)行定做。 About middle hole cross metal dome, it is put led lights in the center, when is pressed, led lamps lighting. Never oppressed to led lamps, it is the benefit of string hole. The normal hole size is 2.0mm, it can makes as customers’ demand.
Technical parameter: a. Contact status: disconnection b. Contact spring back (open) : <0.3ms c. Contact spring back (close) : <0.6ms d. Storage temperature: -55 to +120℃ e. Contact resistance: <100MOhm f. Nickel: <1Ohm g. gilt:< 1MOhm h. Max voltage/ current: 12MA, DC24V RL.