... switch panel, membrane panel, membrane overlay, membrane faceplate for variety electronic industries. MaterialAvailable in Polyester (PET) or ... DC4. Dielectric withstand——250V Rms (50 - 60Hz 1min)5. Contact bounce——5ms or lessSurfacegloss & smooth ,velvet,matte ... 0.6 - 1.5mmLife expectancy1. Flat type——5,000,000 closures or more2. Tactile type——1, ... show:certifications: home button sticker for iphone