When and why do we use different types of waveforms (i.e., 10/1000s, 8/20s, etc. . .)?
The waveform to be used for TVS selection depends upon the specific standard that a system is required to meet. Waveforms are a result of the threat environment, point of entry, and actual system being tested. For example, 10/1000s is the waveform for lightning on long transmission lines, the 8/20s waveform is for near lightning strikes, and the 1/30ns waveform is for ESD. Some waveforms are dependent upon the source of the threat. For example, ESD has a 1/30ns waveform and EFT has a 5/50ns waveform with multiple bursts.
