SCSOA is an abbreviation of Short Circuit Safety Operating Area. During an incident with an inverter device, such as a load short-circuit, arm short-circuit, or ground fault, a current that is several times higher than the rated current flows in the IGBT. SCSOA is provided to protect the IGBT even during these instances. SCSOA has different characteristics depending on the generation or withstand voltage of IGBT. Refer to the technical documents of individual models.