The IEC61000-4-2 standard is crucial for system-level ESD protection, defining requirements and test methods for electronic equipment. The pulse waveform specified in the standard has a sharp 1st peak, reaching its peak current within 1ns, with a total pulse length of approximately 100ns. While this standard provides pass/fail or maximum robustness information, additional insights into the switching characteristics of ESD protection devices can be gained through another useful test method called TLP (Transmission Line Pulse).