Transmission Line Pulse Generator (TLPG) is often applied for Electrostatic Discharge (ESD) discoveries. Since this machine is designed from the transmission line, unlimited to the common voltage source, it is often applied for Devices’ electrical Safe Operation Area (eSOA) measurements with high currents. Different transmission line pulse widths can result in different device data. HBM event is often with 100 ns pulse width, but is 100 ns suitable for eSOA? Through silicon data analyses, the pulse width equal to 200 ns is proposed for Large Array Device (LAD) characteristics measurements in this study.