Digital printing and screen printing are two distinct printing techniques that differ in their approach, capabilities, and applications. Here are the key differences between the two:

Features

Operation:
- When a button is pressed, the top layer makes contact with the underlying circuit, completing an electrical connection that sends a signal to the device.
Construction:
- Composed of several layers, including a flexible printed circuit board (PCB), a spacer layer, and a top overlay that has printed graphics.
Durability:
- Generally resistant to dust and moisture, depending on design specifications. However, they may not be as durable as mechanical switches.
Design:
- Often customizable in terms of size, shape, and layout, making them suitable for various applications.
Cost-Effective:
- Typically cheaper to manufacture than mechanical keypads, making them a popular choice for consumer electronics and appliances.

Membrane switch Performance Index:

Environmentl	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

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