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STF21N90K5-VB Product details
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1. STF21N90K5-VB Product Introduction
STF21N90K5-VB is a single N-channel power MOSFET with high voltage and high current carrying capacity. It adopts TO220F package and is particularly suitable for high power applications. Its maximum drain-source voltage (VDS) is 900V, which supports stable operation in high voltage environment and is suitable for power electronic systems. The maximum drain current (ID) of this MOSFET is 20A, and it has a low on-resistance (RDS(ON)). At a gate drive voltage of 10V, its RDS(ON) is 270mΩ, which effectively reduces the conduction loss. The turn-on voltage (Vth) is 3.5V, which is suitable for standard gate drive requirements. STF21N90K5-VB uses SJ_Multi-EPI technology, which makes it excellent in thermal management, switching performance and system stability. It is widely used in inverters, power conversion, industrial equipment and high-power power supply systems.
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STF21N90K5-VB is a single N-channel power MOSFET with high voltage and high current carrying capacity. It adopts TO220F package and is particularly suitable for high power applications. Its maximum drain-source voltage (VDS) is 900V, which supports stable operation in high voltage environment and is suitable for power electronic systems. The maximum drain current (ID) of this MOSFET is 20A, and it has a low on-resistance (RDS(ON)). At a gate drive voltage of 10V, its RDS(ON) is 270mΩ, which effectively reduces the conduction loss. The turn-on voltage (Vth) is 3.5V, which is suitable for standard gate drive requirements. STF21N90K5-VB uses SJ_Multi-EPI technology, which makes it excellent in thermal management, switching performance and system stability. It is widely used in inverters, power conversion, industrial equipment and high-power power supply systems.
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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 | 900V | 3.5V | 20A | 270mΩ | SJ_Multi-EPI |
| VB Package | Configuration | VCE | VGE | VGEth(V) | VCEsat15V | ICE | Technology |
|---|---|---|---|---|---|---|---|
| TO220F | Single-N | SJ_Multi-EPI |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds18 | Technology |
|---|---|---|---|---|---|---|---|
| TO220F | Single-N | 900V | 3.5V | 20A | SJ_Multi-EPI |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| TO220F | Single-N | 900V | 3.5V | 20A | SJ_Multi-EPI |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| TO220F | Single-N |
2. STF21N90K5-VB Detailed parameter description
| **Parameter category** | **Parameter value** | **Description** |
|-------------------|-------------------------|---------------------------------|
| **Package** | TO220F | High power package, suitable for high power applications|
| **Configuration** | Single N-channel | Common power switch configuration, suitable for a variety of power systems|
| **Drain-source voltage (VDS)** | 900V | High voltage carrying capacity, suitable for high power power supply systems|
| **Gate-source voltage (VGS)** | ±30V | Supports a wide range of gate drive voltages, strong compatibility|
| **Turning voltage (Vth)** | 3.5V | Suitable for common gate drive voltages|
| **On-resistance (RDS(ON))** | 270mΩ @ VGS=10V | Lower on-resistance, reduced power loss, improved efficiency|
| **Maximum drain current (ID)** | 20A | Suitable for high current load current control|
| **Technology** | SJ_Multi-EPI | Improved performance and thermal management with SJ_Multi-EPI technology|
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| **Parameter category** | **Parameter value** | **Description** |
|-------------------|-------------------------|---------------------------------|
| **Package** | TO220F | High power package, suitable for high power applications|
| **Configuration** | Single N-channel | Common power switch configuration, suitable for a variety of power systems|
| **Drain-source voltage (VDS)** | 900V | High voltage carrying capacity, suitable for high power power supply systems|
| **Gate-source voltage (VGS)** | ±30V | Supports a wide range of gate drive voltages, strong compatibility|
| **Turning voltage (Vth)** | 3.5V | Suitable for common gate drive voltages|
| **On-resistance (RDS(ON))** | 270mΩ @ VGS=10V | Lower on-resistance, reduced power loss, improved efficiency|
| **Maximum drain current (ID)** | 20A | Suitable for high current load current control|
| **Technology** | SJ_Multi-EPI | Improved performance and thermal management with SJ_Multi-EPI technology|
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Domain and module applications：
3. Application fields and modules
#### 1. **High voltage power management and conversion**
STF21N90K5-VB is suitable for power management and conversion modules in high voltage power systems. Its 900V drain-source voltage makes it very suitable for applications in high power supplies and high voltage power systems, such as AC-DC converters, DC-DC converters and inverters. Its low on-resistance (RDS(ON)) can minimize conduction losses during power conversion, improve the overall efficiency of the system, and provide excellent current control in high voltage power modules.
#### 2. **Industrial automation and motor drive**
In industrial automation systems and motor drive modules, STF21N90K5-VB can be used for efficient current control and switching operations. It can efficiently drive industrial motors, especially in variable frequency drives (VFDs) and automation equipment, as a power conversion module to ensure efficient operation and low loss of motor systems. Suitable for factory automation, production line control and robotics.
#### 3. **Electric Vehicles (EV) and Charging Facilities**
The high voltage characteristics of the STF21N90K5-VB make it suitable for power management in electric vehicle (EV) charging systems. It can handle high voltages and high currents, ensuring efficient charging and safe protection of the battery during the charging process. Its low on-resistance means less energy loss during the charging process and higher charging efficiency. In addition, the STF21N90K5-VB can also be used in electric vehicle battery management systems (BMS) and charging pile equipment.
#### 4. **Solar Inverters and Renewable Energy Systems**
This MOSFET performs well in solar inverters and wind power inverters. Its high voltage tolerance enables it to effectively convert DC to AC in renewable energy systems, maximizing energy conversion efficiency. The STF21N90K5-VB can be used in high-efficiency solar power systems, wind power generation, and other green energy applications to ensure long-term and stable operation of the system.
#### 5. **Home appliances and high-efficiency power supply equipment**
In home appliances such as air conditioners, TVs and audio equipment, STF21N90K5-VB can be used as a power switch, responsible for power conversion and voltage regulation, to ensure the efficient operation of home appliances. It is also suitable for various high-efficiency power adapters, such as high-efficiency AC-DC converters and battery chargers, which can significantly reduce energy loss and improve system reliability.
#### 6. **High-efficiency power electronic modules**
STF21N90K5-VB is suitable for high-efficiency power electronic modules and is widely used in power factor correction (PFC) and power conditioners. Its high voltage and high current handling capabilities can meet the high-efficiency requirements of power electronic systems, especially in power amplification, voltage regulation and power supply regulation. It is also suitable for medical equipment, power tools and other industrial control modules that require high power processing.
Through these application examples, the STF21N90K5-VB shows its wide application in high-voltage, high-efficiency power conversion. It is an indispensable component in many fields such as high-power power management, inverters, electric vehicle charging, industrial motor drives, etc.
#### 1. **High voltage power management and conversion**
STF21N90K5-VB is suitable for power management and conversion modules in high voltage power systems. Its 900V drain-source voltage makes it very suitable for applications in high power supplies and high voltage power systems, such as AC-DC converters, DC-DC converters and inverters. Its low on-resistance (RDS(ON)) can minimize conduction losses during power conversion, improve the overall efficiency of the system, and provide excellent current control in high voltage power modules.
#### 2. **Industrial automation and motor drive**
In industrial automation systems and motor drive modules, STF21N90K5-VB can be used for efficient current control and switching operations. It can efficiently drive industrial motors, especially in variable frequency drives (VFDs) and automation equipment, as a power conversion module to ensure efficient operation and low loss of motor systems. Suitable for factory automation, production line control and robotics.
#### 3. **Electric Vehicles (EV) and Charging Facilities**
The high voltage characteristics of the STF21N90K5-VB make it suitable for power management in electric vehicle (EV) charging systems. It can handle high voltages and high currents, ensuring efficient charging and safe protection of the battery during the charging process. Its low on-resistance means less energy loss during the charging process and higher charging efficiency. In addition, the STF21N90K5-VB can also be used in electric vehicle battery management systems (BMS) and charging pile equipment.
#### 4. **Solar Inverters and Renewable Energy Systems**
This MOSFET performs well in solar inverters and wind power inverters. Its high voltage tolerance enables it to effectively convert DC to AC in renewable energy systems, maximizing energy conversion efficiency. The STF21N90K5-VB can be used in high-efficiency solar power systems, wind power generation, and other green energy applications to ensure long-term and stable operation of the system.
#### 5. **Home appliances and high-efficiency power supply equipment**
In home appliances such as air conditioners, TVs and audio equipment, STF21N90K5-VB can be used as a power switch, responsible for power conversion and voltage regulation, to ensure the efficient operation of home appliances. It is also suitable for various high-efficiency power adapters, such as high-efficiency AC-DC converters and battery chargers, which can significantly reduce energy loss and improve system reliability.
#### 6. **High-efficiency power electronic modules**
STF21N90K5-VB is suitable for high-efficiency power electronic modules and is widely used in power factor correction (PFC) and power conditioners. Its high voltage and high current handling capabilities can meet the high-efficiency requirements of power electronic systems, especially in power amplification, voltage regulation and power supply regulation. It is also suitable for medical equipment, power tools and other industrial control modules that require high power processing.
Through these application examples, the STF21N90K5-VB shows its wide application in high-voltage, high-efficiency power conversion. It is an indispensable component in many fields such as high-power power management, inverters, electric vehicle charging, industrial motor drives, etc.
* 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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