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STF40NF20-VB Product details

Product introduction:

1. STF40NF20-VB Product Introduction

STF40NF20-VB is a high-performance single N-channel MOSFET in TO220F package, designed for various power switching applications. The drain-source voltage (VDS) of this MOSFET is 200V, which is suitable for power systems that handle higher voltages. Its maximum drain current (ID) is 45A, making it suitable for high-power loads and current-intensive applications. This model of MOSFET has a lower on-resistance (RDS(ON) = 38mΩ @ VGS = 10V), which gives it lower power loss in high-current applications. Its turn-on voltage (Vth) is 3V, with good switching characteristics, and it uses Trench technology to provide better efficiency and stability.

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Product parameter:

VB Package Configuration VDS(V) VGS Vthyp(V) ID(A) Rds2.5 Rds4.5 Rds10 Technology
TO220F Single-N 200V 3V 45A 38mΩ Trench
VB Package Configuration VCE VGE VGEth(V) VCEsat15V ICE Technology
TO220F Single-N Trench
VB Package Configuration VDS(V) VGS Vthyp(V) ID(A) Rds18 Technology
TO220F Single-N 200V 3V 45A Trench
VB Package Configuration VDS(V) VGS Vthyp(V) ID(A) Rds6 Technology
TO220F Single-N 200V 3V 45A Trench
VB Package Polarity Vz / VR Pd VF IF IR Cd Type
TO220F Single-N
2. STF40NF20-VB Detailed parameter description

| **Parameter category** | **Parameter value** | **Description** |
|---------------------|--------------------------|--------------------------------------|
| **Package** | TO220F | High power package, suitable for high power switch applications|
| **Configuration** | Single N-channel | Common power switch configuration, suitable for various power systems|
| **Drain-source voltage (VDS)** | 200V | Suitable for higher voltage load applications|
| **Gate-source voltage (VGS)** | ±20V | Wide gate drive voltage, suitable for a variety of power supply configurations|
| **Turning voltage (Vth)** | 3V | Suitable for common gate drive requirements|
| **On-resistance (RDS(ON))** | 38mΩ @ VGS=10V | Low on-resistance, suitable for low power loss operation with high current loads|
| **Maximum drain current (ID)** | 45A | Suitable for high current load current control|
| **Technology** | Trench | Using Trench technology, with better switching performance and efficiency|

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Domain and module applications:

3. Application fields and modules

#### 1. **High-efficiency power conversion and power amplification**
STF40NF20-VB has low on-resistance and high maximum drain current (45A), making it very suitable for power conversion modules, especially battery-driven DC-DC converters and high-efficiency voltage regulators. These modules can be used in various electronic devices to ensure efficient power conversion while reducing power loss and improving the overall performance of the equipment.

#### 2. **Motor control and drive system**
The high current carrying capacity of this MOSFET makes it very suitable for motor drive and control systems, especially motor drive circuits that need to handle high currents and medium voltages. For example, in applications such as household appliances, power tools, and fan drive systems, the STF40NF20-VB can achieve efficient current switching and motor drive, reduce power loss, and ensure stable motor operation.

#### 3. **Automotive electronics and electric vehicle (EV) charging systems**
In automotive electronics and electric vehicle charging systems, the STF40NF20-VB can be used in power conversion modules such as on-board chargers (OBCs) and battery management systems (BMS). Due to its high current carrying capacity and low on-resistance, this MOSFET can ensure efficient and stable transmission of power during the charging process of electric vehicles, thereby improving the performance and efficiency of the system.

#### 4. **Power supply and UPS system**
STF40NF20-VB is widely used in uninterruptible power supplies (UPS) and high-power power supplies. Its high drain-source voltage and on-resistance characteristics make it suitable for high-power current control and power conversion. Especially in power modules that require frequent switching and long-term operation, it can effectively reduce power loss and improve efficiency, thereby ensuring the stability and durability of the power system.

#### 5. **Power regulation and conversion applications**
STF40NF20-VB is also suitable for power regulation and conversion applications, such as power converters in photovoltaic systems. In these applications, MOSFET is used as a switching element to maintain low power consumption and high efficiency during the conversion process by quickly switching current, ensuring stable conversion of electricity from renewable energy such as solar or wind power to the power grid or energy storage equipment.

Through the above application examples, STF40NF20-VB is a MOSFET with superior performance, which is particularly suitable for high current and high efficiency power management, drive circuits, electric vehicle charging, UPS systems and power conversion, etc., and can provide excellent performance and reduce energy loss.
* Please note: the above is only an example application scenario, the specific application depends on the requirements and conditions of the system design. When using this device, consult its data sheet for detailed technical specifications and features

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