Immunity is a measure of the extent to which electronic components, assemblies, devices or systems are affected by electromagnetic radiation in their functions and can only perform them to a limited extent.
This quality characteristic is also referred to as immunity and is a measure of the extent to which devices and systems can perform their functionality without restrictions. Since the strongest influence is caused by pulse-shaped interference peaks, the immunity of systems and transmission media is tested by transient pulse groups. Depending on the interference field strength, reversible or irreversible malfunctions can occur in the tested units. The highest interference level is indicated by the interference immunity level. This is the value at which functionality is guaranteed. The interference immunity is regulated in the EN standard EN 50082-1 from 1992.