STB40NF20 Overview
The STB40NF20 is a high-performance N-channel power MOSFET designed for efficient switching and power management in industrial and consumer electronics. With a maximum drain-source voltage of 200V and a low on-resistance of 0.045 ??, it delivers reliable conduction with minimal power loss. This device supports fast switching speeds, making it suitable for applications requiring high-speed operation and thermal stability. The robust design ensures long-term reliability under demanding electrical conditions. For detailed specifications and product support, visit IC Manufacturer.
STB40NF20 Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Drain-Source Voltage (VDS) | 200 | V |
| Continuous Drain Current (ID) @ 25??C | 40 | A |
| Gate Threshold Voltage (VGS(th)) | 2.0 ?C 4.0 | V |
| RDS(on) (Max) @ VGS = 10 V | 0.045 | ?? |
| Total Gate Charge (Qg) | 45 | nC |
| Power Dissipation (PD) | 150 | W |
| Operating Junction Temperature | -55 to +175 | ??C |
| Package Type | TO-220 | ?C |
STB40NF20 Key Features
- Low on-resistance: Enables efficient conduction with minimal power dissipation, improving overall system energy efficiency.
- High voltage rating: Supports up to 200 V drain-source voltage, suitable for demanding industrial power supplies and motor control.
- Fast switching capability: Reduces switching losses and enhances performance in high-frequency applications.
- Robust thermal performance: Operates reliably over a wide temperature range, ensuring durability in harsh environments.
Typical Applications
- Switching regulators and power converters requiring efficient high-voltage MOSFETs to optimize energy use and reduce heat generation.
- Motor control circuits where fast switching and high current handling improve torque and response times.
- Industrial automation systems benefiting from reliable power transistors with low conduction losses.
- Load switching and relay replacement applications requiring durable devices with high voltage and current ratings.
STB40NF20 Advantages vs Typical Alternatives
This MOSFET offers a competitive edge through its combination of low on-resistance and high voltage capability, reducing power losses and improving thermal management compared to typical alternatives. Its fast switching and robust package design enhance system efficiency and reliability, making it ideal for demanding industrial and power management applications.
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STB40NF20 Brand Info
The STB40NF20 is manufactured by STMicroelectronics, a global leader in semiconductor design and manufacturing. Known for innovation and quality, STMicroelectronics provides this MOSFET as part of their extensive portfolio of power devices. The product benefits from ST??s advanced process technology, ensuring consistent performance and reliability across various industrial and commercial applications.
FAQ
What is the maximum voltage rating of the STB40NF20?
The device is rated for a maximum drain-source voltage of 200 volts, making it suitable for high-voltage switching and power conversion applications.
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What is the typical on-resistance of this MOSFET?
At a gate-source voltage of 10 volts, the maximum on-resistance is 0.045 ohms, which helps minimize conduction losses and improve efficiency.
In which package does the STB40NF20 come?
This MOSFET is available in a TO-220 package, which provides good thermal dissipation and is widely used in industrial power electronics.
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What are the operating temperature limits for this device?
The STB40NF20 can operate reliably over a junction temperature range from -55??C up to +175??C, making it suitable for harsh environments.






