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STU438A-VB Product details
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STU438A-VB MOSFET Product Introduction
**STU438A-VB** is a **single N-channel MOSFET** designed based on **Trench technology**. It adopts **TO252 package**, has **40V drain-source voltage (VDS)** and **85A maximum drain current (ID)**, suitable for providing efficient current control in high-current, high-power applications. The **on-resistance** of this MOSFET is extremely low, which is **6mΩ (VGS=4.5V)** and **5mΩ (VGS=10V)**, respectively, which can effectively reduce power loss during power conversion. Its **threshold voltage (Vth)** is **2.5V**, with high switching performance, suitable for a variety of power conversion and power management applications, especially in the fields of high-efficiency power supplies, inverters, switching power supplies, etc.
**STU438A-VB** is a **single N-channel MOSFET** designed based on **Trench technology**. It adopts **TO252 package**, has **40V drain-source voltage (VDS)** and **85A maximum drain current (ID)**, suitable for providing efficient current control in high-current, high-power applications. The **on-resistance** of this MOSFET is extremely low, which is **6mΩ (VGS=4.5V)** and **5mΩ (VGS=10V)**, respectively, which can effectively reduce power loss during power conversion. Its **threshold voltage (Vth)** is **2.5V**, with high switching performance, suitable for a variety of power conversion and power management applications, especially in the fields of high-efficiency power supplies, inverters, switching power supplies, etc.
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Product parameter：
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds2.5 | Rds4.5 | Rds10 | Technology |
|---|---|---|---|---|---|---|---|---|---|
| TO252 | Single-N | 40V | 2.5V | 85A | 5mΩ | Trench |
| VB Package | Configuration | VCE | VGE | VGEth(V) | VCEsat15V | ICE | Technology |
|---|---|---|---|---|---|---|---|
| TO252 | Single-N | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds18 | Technology |
|---|---|---|---|---|---|---|---|
| TO252 | Single-N | 40V | 2.5V | 85A | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| TO252 | Single-N | 40V | 2.5V | 85A | Trench |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| TO252 | Single-N |
STU438A-VB MOSFET Detailed parameter description
- **Model**: STU438A-VB
- **Package**: TO252
- **Configuration**: Single-N-Channel
- **Drain-Source Voltage (VDS)**: 40V
- **Gate-Source Voltage (VGS)**: ±20V
- **Threshold Voltage (Vth)**: 2.5V
- **On-Resistance (RDS(ON))**:
- **6mΩ** @ VGS=4.5V
- **5mΩ** @ VGS=10V
- **Maximum Drain Current (ID)**: 85A
- **Technology**: Trench
- **Operating Temperature Range**: Please refer to the product data sheet
- **Maximum Power Loss**: Please refer to the product data sheet
- **Model**: STU438A-VB
- **Package**: TO252
- **Configuration**: Single-N-Channel
- **Drain-Source Voltage (VDS)**: 40V
- **Gate-Source Voltage (VGS)**: ±20V
- **Threshold Voltage (Vth)**: 2.5V
- **On-Resistance (RDS(ON))**:
- **6mΩ** @ VGS=4.5V
- **5mΩ** @ VGS=10V
- **Maximum Drain Current (ID)**: 85A
- **Technology**: Trench
- **Operating Temperature Range**: Please refer to the product data sheet
- **Maximum Power Loss**: Please refer to the product data sheet
Domain and module applications：
Applications and module examples
1. **Switching Mode Power Supply (SMPS)**
In switching mode power supply (SMPS) applications, **STU438A-VB** MOSFET can provide efficient power conversion, especially for **Buck** and **Boost** converters. Due to its low on-resistance and high current carrying capacity, this MOSFET can significantly reduce power loss during the conversion process and improve system efficiency. It is widely used in notebook computers, battery chargers, LED driver power supplies and other fields.
2. **Inverter**
**STU438A-VB** MOSFET can be used in **inverters**, especially in **solar inverters** and **wind power inverters**. These applications require efficient conversion of direct current (DC) to alternating current (AC). Its low RDS(ON) value helps improve the system's conversion efficiency, reduce power loss, and ensure the stability of the system under high current loads.
3. **Battery Management System (BMS)**
**STU438A-VB** is also an important application in **Battery Management System (BMS)**. It can be used for efficient charging and discharging control, especially in **Electric Vehicles (EV)** and **Energy Storage Systems**, to undertake the current regulation and protection tasks of the battery. Due to its high current carrying capacity and low on-resistance, it can ensure that the battery remains stable during the efficient charging and discharging process, avoiding overheating and excessive discharge.
4. **DC-DC Converter**
**STU438A-VB** MOSFET is very suitable for various types of **DC-DC converters**, especially in efficient power management systems. It can support high current density, reduce power loss, and improve voltage stability. Its low on-resistance makes it very popular in applications that require high efficiency and high reliability, such as **Industrial Control Systems**, **Automotive Power Management Systems**, **Communication Equipment**.
5. **Automotive electronics**
**STU438A-VB** MOSFET is widely used in **automotive electronics**, especially in **on-board power management systems**, **electric drive systems** and **battery management systems**. It can play an important role in high-efficiency battery charging and discharging systems, ensuring stable operation of battery packs in electric vehicles (EVs) or hybrid electric vehicles (HEVs) and optimizing energy efficiency.
6. **Load switch**
This MOSFET is also very suitable for **load switch** applications, especially in **smart home**, **industrial automation** and **computer power management** systems. Its low RDS(ON) value ensures that energy losses are minimized during switching operations and guarantees fast response and reliable control.
1. **Switching Mode Power Supply (SMPS)**
In switching mode power supply (SMPS) applications, **STU438A-VB** MOSFET can provide efficient power conversion, especially for **Buck** and **Boost** converters. Due to its low on-resistance and high current carrying capacity, this MOSFET can significantly reduce power loss during the conversion process and improve system efficiency. It is widely used in notebook computers, battery chargers, LED driver power supplies and other fields.
2. **Inverter**
**STU438A-VB** MOSFET can be used in **inverters**, especially in **solar inverters** and **wind power inverters**. These applications require efficient conversion of direct current (DC) to alternating current (AC). Its low RDS(ON) value helps improve the system's conversion efficiency, reduce power loss, and ensure the stability of the system under high current loads.
3. **Battery Management System (BMS)**
**STU438A-VB** is also an important application in **Battery Management System (BMS)**. It can be used for efficient charging and discharging control, especially in **Electric Vehicles (EV)** and **Energy Storage Systems**, to undertake the current regulation and protection tasks of the battery. Due to its high current carrying capacity and low on-resistance, it can ensure that the battery remains stable during the efficient charging and discharging process, avoiding overheating and excessive discharge.
4. **DC-DC Converter**
**STU438A-VB** MOSFET is very suitable for various types of **DC-DC converters**, especially in efficient power management systems. It can support high current density, reduce power loss, and improve voltage stability. Its low on-resistance makes it very popular in applications that require high efficiency and high reliability, such as **Industrial Control Systems**, **Automotive Power Management Systems**, **Communication Equipment**.
5. **Automotive electronics**
**STU438A-VB** MOSFET is widely used in **automotive electronics**, especially in **on-board power management systems**, **electric drive systems** and **battery management systems**. It can play an important role in high-efficiency battery charging and discharging systems, ensuring stable operation of battery packs in electric vehicles (EVs) or hybrid electric vehicles (HEVs) and optimizing energy efficiency.
6. **Load switch**
This MOSFET is also very suitable for **load switch** applications, especially in **smart home**, **industrial automation** and **computer power management** systems. Its low RDS(ON) value ensures that energy losses are minimized during switching operations and guarantees fast response and reliable control.
* 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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