• 13-Nov-2010 05:56 EST
Press Release DirectFET.jpg

International Rectifier (IR) has expanded its family of automotive DirectFET2 power MOSFETs (metal-oxide-semiconductor field-effect transistors). Among the traditional limitations in MOSFETs that the new design is intended to mitigate include cooling, parasitic resistance, and parasitic inductance. DirectFET uses a unique die-free packaging compared to traditional standard plastic packaged components. Traditional packages act as a barrier even while you're putting in more exotic silicon inside. With a shielding only on top, the MOSFETs feature a special solderable metal finish on the other side, connecting it directly to the printed circuit board. According to the company, this delivers better power density, dual-sided cooling, and minimal parasitic inductance and resistance for heavy load applications. Automotive applications include electric power steering, power supplies, battery switches on hybrid-electric vehicles, and integrated starter/alternators on micro-hybrid vehicles.

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