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SPD21N03-VB Product details
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1. Product Introduction
**SPD21N03-VB** is a single N-channel MOSFET in TO252 package with a drain-source voltage (VDS) of 30V and a maximum drain current (ID) of 80A. This MOSFET adopts Trench technology and has a very low on-resistance (RDS(ON)), which is 6mΩ at VGS=4.5V and 5mΩ at VGS=10V, which can effectively reduce power loss and improve system efficiency. Its Vth is 1.7V, which is suitable for low-voltage switching power supplies and high-efficiency power management applications. SPD21N03-VB is particularly suitable for occasions requiring high current and high-efficiency conversion, such as power management, automotive electronics, communication equipment and other fields.
**SPD21N03-VB** is a single N-channel MOSFET in TO252 package with a drain-source voltage (VDS) of 30V and a maximum drain current (ID) of 80A. This MOSFET adopts Trench technology and has a very low on-resistance (RDS(ON)), which is 6mΩ at VGS=4.5V and 5mΩ at VGS=10V, which can effectively reduce power loss and improve system efficiency. Its Vth is 1.7V, which is suitable for low-voltage switching power supplies and high-efficiency power management applications. SPD21N03-VB is particularly suitable for occasions requiring high current and high-efficiency conversion, such as power management, automotive electronics, communication equipment and other 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-N | 30V | 1.7V | 80A | 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 | 30V | 1.7V | 80A | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| TO252 | Single-N | 30V | 1.7V | 80A | Trench |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| TO252 | Single-N |
2. Detailed parameter description
| **Parameter** | **Description** |
|---------------------|----------------------------------------------|
| **Model** | SPD21N03-VB |
| **Package** | TO252 |
| **Configuration** | Single N-channel MOSFET |
| **VDS** | 30V |
| **VGS** | ±20V |
| **Vth** | 1.7V |
| **RDS(ON)** | 6mΩ (VGS=4.5V), 5mΩ (VGS=10V) |
| **ID** | 80A |
| **Technology** | Trench |
| **Power dissipation** | 80W (typical) |
| **Switching time** | 40ns (typical) |
| **Operating temperature range** | -55°C to 150°C |
| **Maximum Junction Temperature** | 150°C |
| **Parameter** | **Description** |
|---------------------|----------------------------------------------|
| **Model** | SPD21N03-VB |
| **Package** | TO252 |
| **Configuration** | Single N-channel MOSFET |
| **VDS** | 30V |
| **VGS** | ±20V |
| **Vth** | 1.7V |
| **RDS(ON)** | 6mΩ (VGS=4.5V), 5mΩ (VGS=10V) |
| **ID** | 80A |
| **Technology** | Trench |
| **Power dissipation** | 80W (typical) |
| **Switching time** | 40ns (typical) |
| **Operating temperature range** | -55°C to 150°C |
| **Maximum Junction Temperature** | 150°C |
Domain and module applications：
3. Application fields and modules
**SPD21N03-VB** has a wide range of applications in multiple fields, especially in power management and high current switch control systems. The following are several major application fields and modules of this product:
- **DC-DC converter**: SPD21N03-VB can be used as a switching element in a DC-DC converter. Its low on-resistance (RDS(ON)) can reduce power loss and improve conversion efficiency, and is particularly suitable for high-frequency switching power supplies such as power converters, battery chargers, and power management modules. It can effectively improve system efficiency and reduce heat generation.
- **Battery Management System (BMS)**: In the battery management system, SPD21N03-VB can control the charging and discharging process of the battery. Its high current handling capability (80A) and low RDS(ON) characteristics are very suitable for battery charging and discharging switches, helping to optimize battery performance, reduce energy loss, and extend battery life.
- **Power tools**: In power tools, such as electric drills, saws, screwdrivers, etc., SPD21N03-VB can be used as a power switch for motor drive. The MOSFET is capable of handling high current loads and reduces power loss and heat generation through low on-resistance, thereby improving the efficiency and life of the tool.
- **Automotive electronic systems**: In automotive electronic control systems, SPD21N03-VB is widely used in modules such as power windows, power seats, automatic door control, and battery management. Its high current carrying capacity and low on-resistance can provide stable switching operation, reduce energy loss and improve the overall efficiency of the system.
- **Communication equipment**: SPD21N03-VB can also be used in power modules in communication equipment, such as base station power supply, data center power supply and network equipment. Its low RDS(ON) characteristics help improve the stability and efficiency of the power supply, reduce the energy consumption of the system and maintain a lower operating temperature.
- **Smart Home and IoT Devices**: In smart home systems and IoT devices, the SPD21N03-VB can be used in power management modules to control the power switch of the device. Its high efficiency and low on-resistance make it ideal for these low-power devices that require high performance and stability.
- **Load Switch**: The SPD21N03-VB is used as a load switch in a variety of applications, including lighting control, industrial equipment, and home appliances. Its low on-resistance and high current carrying capacity enable it to effectively control load current, optimize power transfer, and reduce system heating.
**Summary**: The SPD21N03-VB is a 30V withstand voltage, 80A maximum current high-efficiency MOSFET that uses Trench technology and has extremely low on-resistance. It is suitable for DC-DC converters, battery management, power tools, automotive electronics, communication equipment, and smart homes. It can provide efficient switching control in high current applications, reduce energy loss, and improve system reliability and efficiency.
**SPD21N03-VB** has a wide range of applications in multiple fields, especially in power management and high current switch control systems. The following are several major application fields and modules of this product:
- **DC-DC converter**: SPD21N03-VB can be used as a switching element in a DC-DC converter. Its low on-resistance (RDS(ON)) can reduce power loss and improve conversion efficiency, and is particularly suitable for high-frequency switching power supplies such as power converters, battery chargers, and power management modules. It can effectively improve system efficiency and reduce heat generation.
- **Battery Management System (BMS)**: In the battery management system, SPD21N03-VB can control the charging and discharging process of the battery. Its high current handling capability (80A) and low RDS(ON) characteristics are very suitable for battery charging and discharging switches, helping to optimize battery performance, reduce energy loss, and extend battery life.
- **Power tools**: In power tools, such as electric drills, saws, screwdrivers, etc., SPD21N03-VB can be used as a power switch for motor drive. The MOSFET is capable of handling high current loads and reduces power loss and heat generation through low on-resistance, thereby improving the efficiency and life of the tool.
- **Automotive electronic systems**: In automotive electronic control systems, SPD21N03-VB is widely used in modules such as power windows, power seats, automatic door control, and battery management. Its high current carrying capacity and low on-resistance can provide stable switching operation, reduce energy loss and improve the overall efficiency of the system.
- **Communication equipment**: SPD21N03-VB can also be used in power modules in communication equipment, such as base station power supply, data center power supply and network equipment. Its low RDS(ON) characteristics help improve the stability and efficiency of the power supply, reduce the energy consumption of the system and maintain a lower operating temperature.
- **Smart Home and IoT Devices**: In smart home systems and IoT devices, the SPD21N03-VB can be used in power management modules to control the power switch of the device. Its high efficiency and low on-resistance make it ideal for these low-power devices that require high performance and stability.
- **Load Switch**: The SPD21N03-VB is used as a load switch in a variety of applications, including lighting control, industrial equipment, and home appliances. Its low on-resistance and high current carrying capacity enable it to effectively control load current, optimize power transfer, and reduce system heating.
**Summary**: The SPD21N03-VB is a 30V withstand voltage, 80A maximum current high-efficiency MOSFET that uses Trench technology and has extremely low on-resistance. It is suitable for DC-DC converters, battery management, power tools, automotive electronics, communication equipment, and smart homes. It can provide efficient switching control in high current applications, reduce energy loss, and improve system reliability and efficiency.
* 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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