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Fairchild's 40V N-Channel PowerTrench(R) MOSFET (Graphic: Business Wire)

Automotive design engineers of power steering systems require solutions that provide higher efficiency and better power control. Fairchild Semiconductor’s (NYSE: FCS) 40V N-Channel PowerTrench® MOSFET helps designers with these challenges.

Utilizing Fairchild’s shielded-gate technology, the FDB9403 improves resistance and reduces capacitance. The device delivers a 20 percent lower R DS(ON) than its closest competitors, as well as a low Q g value that reduces power dissipation and ultimately improves overall efficiency. As a fundamental switch for electrical current control, the FDB9403 MOSFET efficiently controls the electrical power without wasting it, making it ideally suited for electrical power steering, suspension control and power train management applications.

Features and Benefits:
  • Typ R DS(ON) = 1mΩ at V GS = 10V, I D = 80V for lower power dissipation to achieve higher efficiency
  • Typ Q g(tot) = 164nC at V GS = 10V, I D = 80V for lower power dissipation to achieve higher efficiency
  • UIS capability
  • RoHS compliant and AEC Q101 qualified

Package and Pricing Information (in US 1,000 quantity pieces)

Samples available upon request - Delivery 8-12 weeks ARO
  • Available in a D2PAK TO-263AB package the FDB9403 is priced at $2.48

Fairchild's expertise in power semiconductor devices and packaging of modules, combined with extensive testing, simulation and high-quality manufacturing, allows the company to provide products that perform reliably in the most demanding automotive environments. With design, fabrication, assembly and testing facilities worldwide, Fairchild is well equipped to meet the quality, reliability and availability needs of automotive manufacturers.

For more information on Fairchild’s automotive solutions, please visit:

Fairchild Semiconductor: Solutions for Your Success™

Contact Information:

To contact Fairchild Semiconductor about this product, please go to: .

For information on other products, design tools and sales contacts, please visit:

Note to Editor: For a datasheet in PDF format, please go to:

About Fairchild Semiconductor:

Fairchild Semiconductor (NYSE: FCS) – global presence, local support, smart ideas. Fairchild delivers energy-efficient, easy-to-use and value-added semiconductor solutions for power and mobile designs. We help our customers differentiate their products and solve difficult technical challenges with our expertise in power and signal path products. Please contact us on the web at

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Copyright Business Wire 2010

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