Inrush current or input surge current refers to the momentarily large surge current that occurs when a device is first powered on. For more information http://www.agilent.com/find/testchall...
Inrush current can be several times larger than the device's steady state current, for instance electric motors can have inrush current levels 25 times greater than their steady state current levels. Inrush current characterization refers to either capturing a high resolution digitized profile of a device's inrush current or just capturing a reliable peak current readin