Round Membrane keypad with transparent window

Round Membrane keypad with transparent windows and ZIF connector

Key specifications about TT-MS-248: Material: Auto-type EBG18 with 3 colors printing

Embossed keys with metal domes ;

Type of metal dome: DIA 12.2 / 280 g / Four Legs / Nickel Plating

Panel spacer layer is 0.125mm Luxking;Fix layer is 0.025mm PET;Dome spacer is 0.228 mm LUXKING;Circuit layer is 0.125mm PET ;

Membrane switch with embossed transparent led windows.

Rear adhesive: 3M468 MP

Flexible cable without connectorThe cable need with clear mylar to go on to protect exposed silver;All material are ROHS;

Electrical: Operating voltage: 0 to 35V DC Operating current: 100mA maximum Operating contact resistance: less than 100Ω typical Contact bounce: less than 5 milliseconds typical Conductors: printed silver conductive inks or carbon blend RFI and ESD shielding: available in most configurations

Mechanical:Lifespan: 500,000 actuation per switch position Actuation force: 150 to 500g, this is depending on customer specificationSwitch travel: 0.10 to 1.00mm typical

 

 

Round Membrane keypad with transparent window