EMI-Schutzfolien bewahren elektronische Geräte vor Beschädigungen oder Funktionseinschränkungen durch elektromagnetische Wellen.

Avoidance of damage caused by electromagnetic waves is an increasingly important topic in the electronics industry due to the growing number of electronic components being installed in automobiles. This increases the complexity of ensuring electromagnetic compatibility (EMC).

Charge transfers are caused by electrostatic charging, i.e. the separation of or friction between two materials. However, energized components such as cables and wires, chassis or PCBs may also cause flashovers unless they’re adequately insulated. Components may be damaged, people put at risk or combustible substances ignited by spark formation in this case as well.

Just like during a thunderstorm, electrostatic discharges can also occur in industrial environments: Whenever the difference between the charges of two objects is big enough this will result in a sudden equalization of potential. This flashover may destroy electronic components. Electromagnetic fields created by changes in electric currents and voltages can damage components as well. Protection films and labels from Schreiner ProTech reduce this risk: they provide insulation and shielding or warn against voltages.