Fairchild Semiconductor
Fairchild FDS6699S N-channel MOSFET, 21 A, 30 V PowerTrench, SyncFET, 8-Pin SOIC
Product Details

PowerTrench® SyncFET™ MOSFET, Fairchild Semiconductor

Designed to minimise losses in power conversion, while maintaining excellent switching performance
High Performance Trench Technology for extremely low RDS(on)
SyncFET™ benefits from an efficient Schottky body diode
Applications in Synchronous Rectification DC-DC Converter, Motor Drives, networking point of load Low Side Switch

MOSFET Transistors, Fairchild Semiconductor

Fairchild offers a substantial portfolio of MOSFET devices that includes high-voltage (>250V) and low-voltage (<250V) types. The advanced silicon technology provides smaller die sizes, which it is incorporated into multiple industry-standard and thermally-enhanced packages.
Fairchild MOSFETs provide superior design reliability from reduced voltage spikes and overshoot, to lower junction capacitance and reverse recovery charge, to elimination of additional external components to keep systems up and running longer.

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Channel TypeN
Maximum Continuous Drain Current21 A
Maximum Drain Source Voltage30 V
Maximum Drain Source Resistance3.6 Ω
Minimum Gate Threshold Voltage1V
Maximum Gate Source Voltage±20 V
Package TypeSOIC
Mounting TypeSurface Mount
Transistor ConfigurationSingle
Pin Count8
Channel ModeEnhancement
CategoryPower MOSFET
Maximum Power Dissipation2.5 W
SeriesPowerTrench, SyncFET
Maximum Operating Temperature+150 °C
Typical Turn-Off Delay Time73 ns
Transistor MaterialSi
Typical Turn-On Delay Time11 ns
Minimum Operating Temperature-55 °C
Typical Gate Charge @ Vgs65 nC @ 10 V
Typical Input Capacitance @ Vds3610 pF @ 15 V
Dimensions5 x 4 x 1.5mm
Number of Elements per Chip1
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110 In stock for delivery within 3 working days
Price Each (In a Pack of 5)
5 - 20
25 +
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Product overview and Technical data sheets
  • RS Components

    Statement of conformity

    This statement confirms that the product detailed below complies with the specifications currently published in the RS media and has been subject to the strict quality conditions imposed by RS Components’ internal management systems. Furthermore and where applicable, it confirms that all relevant semiconductor devices have been handled and packed under conditions that meet the administrative and technical requirements of ANSI/ESD S20.20 and EN61340-5-1 electrostatics control standards.
    RS Stock No. 671-0621
    Name Fairchild FDS6699S N-channel MOSFET, 21 A, 30 V PowerTrench, SyncFET, 8-Pin SOIC
    Manufacturer/Brand Name Fairchild Semiconductor
    Mfr. Part No. FDS6699S
    The foregoing information relates to product sold on, or after, the date shown below.
    Date Jul 21, 2017
    RS Components Ltd, Suite 1601, Level 16, Tower 1, Kowloon Commerce Centre, 51 Kwai Cheong Road, Kwai Chung, Hong Kong
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