Fairchild Semiconductor
Fairchild FQA6N90C_F109 N-channel MOSFET, 6 A, 900 V QFET, 3-Pin TO-3PN
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Product Details

QFET® N-Channel MOSFET, 6A to 10.9A, Fairchild Semiconductor

Fairchild Semiconductor’s new QFET® planar MOSFETs use advanced, proprietary technology to offer best-in-class operating performance for a wide range of applications, including power supplies, PFC (Power Factor Correction), DC-DC Converters, Plasma Display Panels (PDP), lighting ballasts, and motion control.
They offer reduced on-state loss by lowering on-resistance (RDS(on)), and reduced switching loss by lowering gate charge (Qg) and output capacitance (Coss). By using advanced QFET® process technology, Fairchild can offer an improved figure of merit (FOM) over competing planar MOSFET devices.

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 Current6 A
Maximum Drain Source Voltage900 V
Maximum Drain Source Resistance2.3 Ω
Minimum Gate Threshold Voltage3V
Maximum Gate Source Voltage-30 V, +30 V
Package TypeTO-3PN
Mounting TypeThrough Hole
Pin Count3
Transistor ConfigurationSingle
Channel ModeEnhancement
CategoryPower MOSFET
Maximum Power Dissipation198 W
Typical Gate Charge @ Vgs30 nC @ 10 V
Minimum Operating Temperature-55 °C
Typical Input Capacitance @ Vds1360 pF@ 25 V
Typical Turn-Off Delay Time55 ns
Maximum Operating Temperature+150 °C
Dimensions15.8 x 5 x 18.9mm
Typical Turn-On Delay Time35 ns
Number of Elements per Chip1
Transistor MaterialSi
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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. 671-4954
    Name Fairchild FQA6N90C_F109 N-channel MOSFET, 6 A, 900 V QFET, 3-Pin TO-3PN
    Manufacturer/Brand Name Fairchild Semiconductor
    Mfr. Part No. FQA6N90C_F109
    The foregoing information relates to product sold on, or after, the date shown below.
    Date Nov 18, 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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