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High-power 500V N-channel MOSFET rated for 45A

ISO14001 ISO9001 DUNS

Brands: Stmicroelectronics

Mfr.Part #: STW45NM50FD

Datasheet: STW45NM50FD Datasheet (PDF)

Package/Case: TO-247-3

Product Type: Single FETs, MOSFETs

RoHS Status:

Stock Condition: 2,536 pcs, New Original

Warranty: 1 Year Ovaga Warranty - Find Out More

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STW45NM50FD General Description

Ideal for a wide range of electronic devices and systems, the STW45NM50FD Power MOSFET boasts a robust TO-247 package that enhances its thermal performance and allows for easy installation on heatsinks. This means that you can trust this MOSFET to operate reliably under various environmental conditions, thanks to its wide operating temperature range of -55°C to 150°C. Whether you are designing power supplies, motor controllers, or battery management systems, the STW45NM50FD is a versatile and dependable choice that delivers high-performance results every time



  • Rapid switching performance
  • Low capacitance and charge
  • Fast and reliable operation
  • High dv/dt ruggedness ensured
  • Suitable for demanding applications
  • Elevated temperature tolerance


  • Audio amplifiers
  • LED drivers
  • Switching regulators


Parameter Value Parameter Value
Product Category MOSFET RoHS Details
Technology Si Mounting Style Through Hole
Package / Case TO-247-3 Transistor Polarity N-Channel
Number of Channels 1 Channel Vds - Drain-Source Breakdown Voltage 500 V
Id - Continuous Drain Current 45 A Rds On - Drain-Source Resistance 100 mOhms
Vgs - Gate-Source Voltage - 30 V, + 30 V Minimum Operating Temperature - 65 C
Maximum Operating Temperature + 150 C Pd - Power Dissipation 417 W
Channel Mode Enhancement Series STW45NM50FD
Brand STMicroelectronics Configuration Single
Fall Time 87.7 ns Height 20.15 mm
Length 15.75 mm Product Type MOSFET
Rise Time 107.5 ns Factory Pack Quantity 30
Subcategory MOSFETs Transistor Type 1 N-Channel
Type MOSFET Typical Turn-Off Delay Time 21.6 ns
Typical Turn-On Delay Time 26.5 ns Width 5.15 mm
Unit Weight 0.211644 oz


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TNT TNT $20.00-$40.00 (0.50 KG) 2-5 days
EMS EMS $20.00-$40.00 (0.50 KG) 2-5 days
REGISTERED AIR MAIL REGISTERED AIR MAIL $20.00-$40.00 (0.50 KG) 2-5 days

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Credit Card Credit Card charge 3.5% service fee.
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1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


  • Product

    Step1 :Product

  • Vacuum packaging

    Step2 :Vacuum packaging

  • Anti-static bag

    Step3 :Anti-static bag

  • Individual packaging

    Step4 :Individual packaging

  • Packaging boxes

    Step5 :Packaging boxes

  • bar-code shipping tag

    Step6 :bar-code shipping tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

  • ESD
  • ESD

Part points

  • The STW45NM50FD is a power MOSFET chip designed for high voltage applications, capable of handling up to 500V. It features low on-resistance and high efficiency, making it ideal for power supply, motor control, and lighting applications. Additionally, it offers fast switching speeds and high reliability, making it a popular choice for various industrial and automotive projects.
  • Equivalent

    The equivalent products of STW45NM50FD chip are PSMN070-100MSE, STW7NK90Z, and STP14NK50Z. These MOSFETs have similar specifications and can be used as substitutes for the STW45NM50FD in various applications.
  • Features

    1. Vdss=500V 2. RDS(on) = 0.065ohm 3. I_d= 36A 4. Power dissipation= 315W 5. Strong immunity to EMI 6. Easy to drive 7. Low gate input resistance 8. Low gate charge 9. Avalanche ruggedness 10. Optimized dynamic behavior
  • Pinout

    The STW45NM50FD is a MOSFET transistor with a TO-247 package. It has 3 pins: Gate (G), Drain (D), and Source (S). The pin count is 3 and the function is to control the flow of current between the Drain and Source terminals by applying a voltage to the Gate terminal.
  • Manufacturer

    STW45NM50FD is manufactured by STMicroelectronics, a multinational semiconductor company. They are a leading manufacturer of integrated circuits, MEMS sensors, and power semiconductors. STMicroelectronics focuses on providing innovative solutions for a wide range of industries including automotive, industrial, and consumer electronics.
  • Application Field

    The STW45NM50FD is a power MOSFET designed for use in high efficiency applications such as telecom and server power supplies, wireless charging systems, and automotive battery management systems. Its low on-resistance and high avalanche capability make it ideal for high power and high frequency switching applications.
  • Package

    The STW45NM50FD is a MOSFET chip packaged in a TO-247 form with a size of 10.3mm x 15.35mm.

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