Electrical fast transients (EFT) or burst testing attempts to imitate the natural phenomenon of what occurs when a switch opens or closes a circuit. The repetitive fast transient test consists of a number of fast transients, coupled into power and control/signal ports of electrical and electronic equipment. The bursts in the test aim to imitate the high amplitude, short rise times, high repetition frequency, and low energy levels of typical transients in the field. Download this application note to learn more about the immunity of electrical and electronic equipment when subjected to types of transient disturbances such as those originating from switching transients.