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STU421S-VB Product details
Back to previous pageProduct introduction：
### 1. Product Introduction
**Model: STU421S-VB**
STU421S-VB is a high-performance P-Channel MOSFET produced by VBsemi, suitable for various high-reliability power management applications. Its package adopts TO-252, which provides good heat dissipation performance and mechanical strength, and is suitable for surface mount technology (SMT) applications. This model has a low on-resistance (RDS(ON)), ensuring high efficiency and low power consumption, especially suitable for occasions requiring high current transmission and fast switching.
### 3. Application fields and module examples
The characteristics of STU421S-VB P-Channel MOSFET make it widely used in various fields
**Model: STU421S-VB**
STU421S-VB is a high-performance P-Channel MOSFET produced by VBsemi, suitable for various high-reliability power management applications. Its package adopts TO-252, which provides good heat dissipation performance and mechanical strength, and is suitable for surface mount technology (SMT) applications. This model has a low on-resistance (RDS(ON)), ensuring high efficiency and low power consumption, especially suitable for occasions requiring high current transmission and fast switching.
### 3. Application fields and module examples
The characteristics of STU421S-VB P-Channel MOSFET make it widely used in various fields
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Product parameter：
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds2.5 | Rds4.5 | Rds10 | Technology |
|---|---|---|---|---|---|---|---|---|---|
| TO252 | Single-P | -40V | -2V | -50A | 15(mΩ) | 12(mΩ) | Trench |
| VB Package | Configuration | VCE | VGE | VGEth(V) | VCEsat15V | ICE | Technology |
|---|---|---|---|---|---|---|---|
| TO252 | Single-P | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds18 | Technology |
|---|---|---|---|---|---|---|---|
| TO252 | Single-P | -40V | -2V | -50A | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| TO252 | Single-P | -40V | -2V | -50A | Trench |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| TO252 | Single-P |
### 2. Detailed parameter description
- **Model: STU421S-VB**
- **Brand: VBsemi**
- **Type: P-Channel MOSFET**
- **Maximum withstand voltage (VDS): -40V**
- **Maximum current (ID): -65A**
- **On-resistance (RDS(ON)): 12mΩ @ VGS=10V**
- **Maximum gate voltage (VGS): ±±20V**
- **Threshold voltage (Vth): -1.6V**
- **Package: TO-252**
- **Model: STU421S-VB**
- **Brand: VBsemi**
- **Type: P-Channel MOSFET**
- **Maximum withstand voltage (VDS): -40V**
- **Maximum current (ID): -65A**
- **On-resistance (RDS(ON)): 12mΩ @ VGS=10V**
- **Maximum gate voltage (VGS): ±±20V**
- **Threshold voltage (Vth): -1.6V**
- **Package: TO-252**
Domain and module applications：
Here are a few typical application scenarios:
1. **Power Management Module**:
In a switch mode power supply (SMPS), the STU421S-VB can be used as a low-side switch to help achieve efficient power conversion. Its low on-resistance characteristic ensures lower energy loss and improves the overall efficiency of the power supply.
2. **Battery Management System**:
This MOSFET is suitable for battery protection circuits in electric vehicles and portable devices. It is capable of handling large currents and protecting battery packs from overcurrent and short circuits, while its low on-resistance ensures minimal energy loss.
3. **DC-DC Converter**:
In a DC-DC converter, the STU421S-VB can be used as a synchronous rectifier, greatly improving conversion efficiency. Its fast switching capability ensures smaller switching losses, making it excel in high-frequency applications.
4. **Load Switch**:
In portable devices such as smartphones and tablets, the STU421S-VB can be used as a load switch. Its low on-resistance and high current handling capability enable it to effectively control the switching of power supplies and extend the battery life of devices.
5. **Motor Driver**:
Due to its high current handling capability, the STU421S-VB is suitable for a variety of motor driver applications, especially in situations that require precise control and fast response, such as power tools and household appliances.
These features of the STU421S-VB P-Channel MOSFET make it an ideal choice for a variety of power management and efficient switching applications.
1. **Power Management Module**:
In a switch mode power supply (SMPS), the STU421S-VB can be used as a low-side switch to help achieve efficient power conversion. Its low on-resistance characteristic ensures lower energy loss and improves the overall efficiency of the power supply.
2. **Battery Management System**:
This MOSFET is suitable for battery protection circuits in electric vehicles and portable devices. It is capable of handling large currents and protecting battery packs from overcurrent and short circuits, while its low on-resistance ensures minimal energy loss.
3. **DC-DC Converter**:
In a DC-DC converter, the STU421S-VB can be used as a synchronous rectifier, greatly improving conversion efficiency. Its fast switching capability ensures smaller switching losses, making it excel in high-frequency applications.
4. **Load Switch**:
In portable devices such as smartphones and tablets, the STU421S-VB can be used as a load switch. Its low on-resistance and high current handling capability enable it to effectively control the switching of power supplies and extend the battery life of devices.
5. **Motor Driver**:
Due to its high current handling capability, the STU421S-VB is suitable for a variety of motor driver applications, especially in situations that require precise control and fast response, such as power tools and household appliances.
These features of the STU421S-VB P-Channel MOSFET make it an ideal choice for a variety of power management and efficient switching applications.
* 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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