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STB40N20-VB Product details

Product introduction:

1. **STB40N20-VB Product Introduction**

STB40N20-VB is a unipolar N-channel MOSFET based on Trench technology, packaged in TO263, designed for high-efficiency, high-power density applications. Its maximum drain-source voltage (VDS) is 200V, suitable for medium and high voltage power conversion and power management systems, and the gate voltage (VGS) can withstand ±20V. The threshold voltage (Vth) of this MOSFET is 3V, which can ensure startup at a lower gate voltage, and has a relatively low on-resistance (RDS(ON)). When VGS=10V, RDS(ON) is 38mΩ, which reduces energy loss and improves system efficiency. The maximum drain current (ID) is 45A, which means it can handle higher load currents and is suitable for high-power power modules and power conversion systems.

STB40N20-VB is widely used in power electronics, industrial power supplies, automotive electronics and other fields requiring high power and low loss due to its excellent conduction performance and stable working characteristics.

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Product parameter:

VB Package Configuration VDS(V) VGS Vthyp(V) ID(A) Rds2.5 Rds4.5 Rds10 Technology
TO263 Single-N 200V 3V 45A 38mΩ Trench
VB Package Configuration VCE VGE VGEth(V) VCEsat15V ICE Technology
TO263 Single-N Trench
VB Package Configuration VDS(V) VGS Vthyp(V) ID(A) Rds18 Technology
TO263 Single-N 200V 3V 45A Trench
VB Package Configuration VDS(V) VGS Vthyp(V) ID(A) Rds6 Technology
TO263 Single-N 200V 3V 45A Trench
VB Package Polarity Vz / VR Pd VF IF IR Cd Type
TO263 Single-N
2. **STB40N20-VB Detailed Parameter Description**

| **Parameter Category** | **Parameter Value** | **Description** |
|----------------------|--------------------------------------------|-------------------------------------------------------------|
| **Package Type** | TO263 | Surface mount package, suitable for medium power and high current load applications|
| **Configuration** | Unipolar N-channel | For power management and power conversion, with stable switching characteristics|
| **Drain-Source Voltage (VDS)** | 200V | Maximum operating voltage, suitable for medium and high voltage power supply systems|
| **Gate Voltage (VGS)** | ±20V | Supports a wide gate voltage range, suitable for a variety of drive circuits|
| **Threshold Voltage (Vth)** | 3V | Reasonable startup voltage to ensure stable turn-on at a lower voltage|
| **On-resistance (RDS(ON))** | 38mΩ @ VGS=10V | Lower on-resistance, reduced conduction losses, and improved efficiency|
| **Drain Current (ID)** | 45A | Higher current carrying capability for high power load applications|
| **Technology Type** | Trench | Trench technology optimizes switching speed, reduces conduction losses, and enhances performance|
| **Operating Temperature Range** | -55°C to 150°C | Wide temperature range ensures stability in a variety of environmental conditions|

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Domain and module applications:

3. **Application fields and module examples**

1. **Power conversion system**
- **Application module**: DC-DC converter, AC-DC power adapter, power module
- **Example**: STB40N20-VB can be used in various power conversion systems, such as DC-DC converter and AC-DC power adapter. Its low on-resistance and high current carrying capacity make it very suitable for efficient power management, especially in power supply design requiring high current load and low energy loss.

2. **Industrial power system**
- **Application module**: Power converter, motor driver
- **Example**: In industrial power systems, STB40N20-VB can be used as a switching element in motor drivers and power converters. Its high on-capacity and low on-resistance can effectively reduce power loss, increase the energy efficiency of the overall power system, and ensure stable operation of equipment under high load.

3. **Electric Vehicles (EV)**
- **Application Module**: Battery Management System (BMS), Charging System
- **Example**: In electric vehicles, the STB40N20-VB can be used in battery management systems (BMS) and charging systems. Its low on-resistance and high current carrying capacity help improve battery charging efficiency, reduce system power losses, and ensure efficient battery charging and discharging management.

4. **Solar Power Generation System**
- **Application Module**: Solar Inverter, Power Management System
- **Example**: In a solar power generation system, the STB40N20-VB can be used in inverters and power management modules to convert the DC power generated by solar panels into AC power, and improve the overall conversion efficiency through its low on-resistance characteristics, reduce energy losses, and improve system performance.

5. **UPS Uninterruptible Power System**
- **Application Module**: Uninterruptible Power Supply, Backup Power Module
- **Example**: STB40N20-VB can be used in UPS systems as a switching element for current conversion. Its high current handling capability and low conduction loss can provide stable and reliable backup power during power outages, ensuring continuous operation of load equipment, especially in commercial and industrial environments.

6. **Communication Base Station Power Management**
- **Application Module**: Communication Power Supply, Communication Equipment Power Converter
- **Example**: STB40N20-VB plays an important role in the power management of communication base stations, especially in the power conversion of high current and high power communication equipment. Its high-efficiency power conversion and low energy loss characteristics help improve the stability and operational efficiency of communication base stations.

7. **Home appliance power module**
- **Application module**: Power management module for home appliances (such as air conditioners, refrigerators, etc.)
- **Example**: STB40N20-VB can be used in home appliances such as air conditioners and refrigerators as part of the power conversion module. Its efficient power conversion capability and low on-resistance can improve the energy efficiency of the equipment, reduce power loss, and extend the service life of the equipment.

8. **Power transmission and distribution system**
- **Application module**: Power inverter, power distribution equipment
- **Example**: In the power transmission and distribution system, STB40N20-VB can be used as a switching element in the power inverter to handle high power current, optimize the power conversion process, and improve the efficiency and stability of the entire power transmission system.

STB40N20-VB is widely used in many fields such as high-efficiency power management, industrial power control, automotive power systems, etc. It can effectively improve system efficiency, reduce energy loss, and ensure stable operation under high current and high load conditions.
* 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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