Name: Membrane Switch Keypad
Brand: 3G TECHNOLOGY INC.
SKU: Membrane Switch Keypad

Membrane Switch Keypad

Membrane switch is a conductive keypad with unique exterior design, combines the overlay printing and electronic circuits and features with light, thin, short and tiny. All design can follow customer’s specification. Materials such as TPU, PC and PET are in options. TPU (Polyurethane) is a new eco- friendly material which does not cause any damage to the human body or environment. PET is resistant to strong acid and alkali, suitable for IPC and medical products use. PC (Polycarbonate) is lower in price and suitable for home appliance. Membrane switches mostly apply to Information Appliance, Humanity machine interface (HMI), Remote Controller, Medical Device, Home Appliance, Handheld Device, Industrial Personal Computer (IPC), etc. We offer a full range of design services, the experienced professional art designers will design perfect colorful drawing for overlay, also the circuit layout and mechanism dimension diagram base on customer’s information.

Model : Membrane Switch Keypad

Description
Specifications

Flat and all embossed key type with either metal dome or Mylar dome.
SMT components, such as LED, resistors and sensors.
Overlay material: Polyester, Polycarbonate, Thermoplastic Polyurethane, Rubber.
textured surface(or matte surface treatment) with choices of transparent or color printing display window
Special design: EMI, RFI, or ESD shielding.
Waterproof type (IP65).
Jumper wire, through-hole type.
The technique for min punching hole is 1.14mm.
Tail: without pins, male pins or female pins with connector.
Circuit choice: Mylar circuit, FPC circuit or PCB circuit.
Special structure: Rubber keypad, Aluminium keypad, Light Guild Film (LGF) backlight effect, Touch Panel integration.

Electrical characteristics

Maximum Circuit Rating	35V( DC)100mA 1W
Contact Resistance	10Ω~500Ω (Depending on trace length & material used).
Insulation Resistance	100MΩ at 100V DC
Dielectric Withstand	250 V Rms (50~60 Hz 1 min.)
Contact Bounce	≦5ms
Life Expectancy	Flat type ≧ 5 million closures Mylar type ≧ 2 million closures Metal type ≧ 1 million closures

Mechanical characteristics

Actuation Force

Flat type = 60 to300 g(2 to10 oz)

Tactile type = 180 to400 g(6 to14 oz)

Switch Stroke

Flat type = 0.1 to0.5mm

Tactile type = 0.6 to1.5mm

Environmental parameters

Operation Temperature	Flat/Metal dome:-40 °Cto +80 °C Poly dome:-20 °Cto +55 °C
Storage Temperature	Flat/Metal dome:-40 °Cto +85 °C Poly dome:-40 °Cto +60 °C
Humidity	40 °C , 90% ~ 95% for 240 hours
Vibration	20 G's0 max (10-200 Hz、MIL-STD-202、M204、Condition B)

Membrane Switch Keypad

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