Backlighted Series

The backlighting of membrane switches and graphic overlays can create a dramatic visual effect that increases the functionality of a device, especially in low light environments

There are many ways in which to backlight a membrane switch. And each method has its advantage and disadvantages. We provide our customers with five different options so you can find the perfect system to meet your backlighting needs

Electroluminescent

Non-Tactile

LED

Light GUIDE FILM

 

LGF is a plane emission type of light guiding film made with transparent silicone rubber. When added to the current membrane switch structure, this film helps achieve even illumination across the surface. And yet by adjusting the layout, selected areas can be designed to light up in different intensity.

Furthermore, utilizing LGF can significantly reduce the cost and power consumption of a device by reducing the number of LED needed to illuminate the same area. LED light is shined from the edge of the LGF to be transmitted internally and emitted evenly where there are white refracting printed dots pattern which can be customized to your needs.

 

Environmental	Operating Temperature	-40°C to +80°C (-40°to 176°F)
	Storage Temperature	-40°C to +85°C (-40°to 185°F)
	Humidity	40°C, 90% to 95% for 240 hours
	Vibration	20G's max.
Mechanical	Actuation Force	Non-tactile 60g to 300g (2oz to 10oz)
		Tactile 150g to 400g (6oz to 14oz)
	Switch Stroke	Non-tactile 0.1 to 0.5mm
	Life Expectancy	Tactile 0.6 to 1.5mm
		Non-tactile >5 million actuations
		Tactile >1 million actuations
Electrical	Operating Voltage	35 volts maximum
	Operating Current	10 micro amps to 100 milliamps, resistive
	Operating Power	1 watt maximum
	Circuit Resistance	10 ohms to 500 ohms, dependent on size and layout
	Insulation Resistance	100M ohms at 100V DC
	Dielectric Withstand	>250 VRMs (50-60Hz 1 minute)
	Contact Bounce	≤ 5 milliseconds