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STF21NM50N-VB Product details
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STF21NM50N-VB Product Introduction
STF21NM50N-VB is an **N-type power MOSFET**, using **TO220F** package, based on **SJ_Multi-EPI technology**, designed for high voltage and medium-to-high current applications. Its **VDS** (drain-source voltage) is **650V** at maximum, suitable for power conversion in high voltage applications. The **Vth** (turn-on voltage) of the MOSFET is **3.5V**, which enables efficient operation at a lower gate drive voltage. It has a low on-resistance (RDS(ON)) of **160mΩ @ VGS=10V**, which can significantly reduce power loss and improve the overall efficiency of the system, especially in high current applications. Its maximum drain current (ID) is **20A**, suitable for applications such as power management, motor drive, inverters, etc. that require higher current and high voltage tolerance.
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STF21NM50N-VB is an **N-type power MOSFET**, using **TO220F** package, based on **SJ_Multi-EPI technology**, designed for high voltage and medium-to-high current applications. Its **VDS** (drain-source voltage) is **650V** at maximum, suitable for power conversion in high voltage applications. The **Vth** (turn-on voltage) of the MOSFET is **3.5V**, which enables efficient operation at a lower gate drive voltage. It has a low on-resistance (RDS(ON)) of **160mΩ @ VGS=10V**, which can significantly reduce power loss and improve the overall efficiency of the system, especially in high current applications. Its maximum drain current (ID) is **20A**, suitable for applications such as power management, motor drive, inverters, etc. that require higher current and high voltage tolerance.
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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 | 650V | 3.5V | 20A | 160mΩ | 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 | 650V | 3.5V | 20A | SJ_Multi-EPI |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| TO220F | Single-N | 650V | 3.5V | 20A | SJ_Multi-EPI |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| TO220F | Single-N |
STF21NM50N-VB Detailed Parameters
| **Parameter** | **Value** | **Description** |
|------------------------|-------------------------------------|---------------------------------------------------|
| **Package Type** | TO220F | Provides excellent heat dissipation performance, suitable for high power applications. |
| **Channel Type** | Single-N | Suitable for high power switching applications, can provide low on-resistance and high withstand voltage capability. |
| **Drain-Source Voltage (VDS)** | 650V | High voltage withstand capability, suitable for medium and high voltage power conversion applications. |
| **Gate-Source Voltage (VGS)** | ±30V | Maximum gate drive voltage to ensure stable switching control. |
| **Throw-On Voltage (Vth)** | 3.5V | Stable turn-on voltage, suitable for gate drive applications in a variety of voltage ranges. |
| **On-resistance (RDS(ON))** | 160mΩ @ VGS=10V | Lower on-resistance reduces power loss, improves system efficiency, and ensures better performance. |
| **Drain current (ID)** | 20A | Maximum drain current, suitable for medium and high power loads, capable of supporting high current applications. |
| **Technology type** | SJ_Multi-EPI | SJ_Multi-EPI technology based on multi-gate structure provides better switching performance and lower on-resistance. |
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| **Parameter** | **Value** | **Description** |
|------------------------|-------------------------------------|---------------------------------------------------|
| **Package Type** | TO220F | Provides excellent heat dissipation performance, suitable for high power applications. |
| **Channel Type** | Single-N | Suitable for high power switching applications, can provide low on-resistance and high withstand voltage capability. |
| **Drain-Source Voltage (VDS)** | 650V | High voltage withstand capability, suitable for medium and high voltage power conversion applications. |
| **Gate-Source Voltage (VGS)** | ±30V | Maximum gate drive voltage to ensure stable switching control. |
| **Throw-On Voltage (Vth)** | 3.5V | Stable turn-on voltage, suitable for gate drive applications in a variety of voltage ranges. |
| **On-resistance (RDS(ON))** | 160mΩ @ VGS=10V | Lower on-resistance reduces power loss, improves system efficiency, and ensures better performance. |
| **Drain current (ID)** | 20A | Maximum drain current, suitable for medium and high power loads, capable of supporting high current applications. |
| **Technology type** | SJ_Multi-EPI | SJ_Multi-EPI technology based on multi-gate structure provides better switching performance and lower on-resistance. |
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Domain and module applications：
Application fields and module examples of STF21NM50N-VB
1. **High-Voltage Power Management Systems**
STF21NM50N-VB is very suitable for **high-voltage power management systems** due to its **650V** drain-source voltage and **20A** drain current. It can efficiently convert power in **switching power supplies** and **power adapters**, especially for **industrial power systems** and **UPS (uninterruptible power supplies)**. Its lower **RDS(ON)** value can reduce energy losses and thus improve overall system efficiency.
2. **Solar Inverters**
In **solar inverters**, STF21NM50N-VB can be used for **DC to AC energy conversion**. Its high withstand voltage and high current carrying capacity enable it to play an important role in solar energy systems, especially in **residential solar power generation systems** and **commercial solar inverters**, ensuring that the system can stably and efficiently convert solar energy into electrical energy and reduce power loss.
3. **Motor Drive Systems**
STF21NM50N-VB can also be widely used in **motor drive systems**, especially in **power tools**, **home appliance control**, and **industrial automation equipment** that require high voltage and large current. It can effectively control the switching and speed regulation of the motor, and provide reliable driving power in **automation equipment** and **smart home devices**.
4. **Switching Power Supply Modules**
STF21NM50N-VB is an ideal choice for high-voltage switching power supplies, especially for high-power applications such as **AC-DC converters** and **DC-DC converters**. Its **650V** maximum voltage tolerance and **20A** maximum current capability can effectively handle high-power loads and ensure stable and efficient operation of the power supply system. This makes it widely used in **power electronic equipment** and **communication equipment**.
5. **Battery Management & Charging Systems**
STF21NM50N-VB is suitable for **battery management systems (BMS)** and **charger systems** due to its high voltage resistance and medium current carrying capacity. It can provide stable current regulation in **electric vehicle chargers**, **battery energy storage systems** and **uninterruptible power supply charging systems**, and ensure efficient conversion of energy during charging.
6. **Switching Mode Power Supply Conversion (SMPS Applications)**
STF21NM50N-VB is widely used in **switching mode power supplies (SMPS)**, especially in the **high-efficiency power conversion** process, which can effectively improve the efficiency of the overall power supply. Its low on-resistance and high withstand voltage make it very suitable for **industrial power systems** and **high power conversion equipment**, and it has important applications in **communication equipment** and **server power**.
7. **Power Inverters and Converters**
STF21NM50N-VB is also suitable for various **power inverter and converter** systems, especially in **electric vehicle inverter** and **high power energy conversion**. Its **650V** withstand voltage and **20A** high current capability make it perform well in high power energy transmission and conversion applications.
In summary, the STF21NM50N-VB, with its **650V** withstand voltage and **160mΩ** on-resistance, has become a very valuable choice in high voltage and high power applications. It is widely used in **power management**, **motor drive**, **solar inverter**, **high-efficiency switching power supply** and other fields.
1. **High-Voltage Power Management Systems**
STF21NM50N-VB is very suitable for **high-voltage power management systems** due to its **650V** drain-source voltage and **20A** drain current. It can efficiently convert power in **switching power supplies** and **power adapters**, especially for **industrial power systems** and **UPS (uninterruptible power supplies)**. Its lower **RDS(ON)** value can reduce energy losses and thus improve overall system efficiency.
2. **Solar Inverters**
In **solar inverters**, STF21NM50N-VB can be used for **DC to AC energy conversion**. Its high withstand voltage and high current carrying capacity enable it to play an important role in solar energy systems, especially in **residential solar power generation systems** and **commercial solar inverters**, ensuring that the system can stably and efficiently convert solar energy into electrical energy and reduce power loss.
3. **Motor Drive Systems**
STF21NM50N-VB can also be widely used in **motor drive systems**, especially in **power tools**, **home appliance control**, and **industrial automation equipment** that require high voltage and large current. It can effectively control the switching and speed regulation of the motor, and provide reliable driving power in **automation equipment** and **smart home devices**.
4. **Switching Power Supply Modules**
STF21NM50N-VB is an ideal choice for high-voltage switching power supplies, especially for high-power applications such as **AC-DC converters** and **DC-DC converters**. Its **650V** maximum voltage tolerance and **20A** maximum current capability can effectively handle high-power loads and ensure stable and efficient operation of the power supply system. This makes it widely used in **power electronic equipment** and **communication equipment**.
5. **Battery Management & Charging Systems**
STF21NM50N-VB is suitable for **battery management systems (BMS)** and **charger systems** due to its high voltage resistance and medium current carrying capacity. It can provide stable current regulation in **electric vehicle chargers**, **battery energy storage systems** and **uninterruptible power supply charging systems**, and ensure efficient conversion of energy during charging.
6. **Switching Mode Power Supply Conversion (SMPS Applications)**
STF21NM50N-VB is widely used in **switching mode power supplies (SMPS)**, especially in the **high-efficiency power conversion** process, which can effectively improve the efficiency of the overall power supply. Its low on-resistance and high withstand voltage make it very suitable for **industrial power systems** and **high power conversion equipment**, and it has important applications in **communication equipment** and **server power**.
7. **Power Inverters and Converters**
STF21NM50N-VB is also suitable for various **power inverter and converter** systems, especially in **electric vehicle inverter** and **high power energy conversion**. Its **650V** withstand voltage and **20A** high current capability make it perform well in high power energy transmission and conversion applications.
In summary, the STF21NM50N-VB, with its **650V** withstand voltage and **160mΩ** on-resistance, has become a very valuable choice in high voltage and high power applications. It is widely used in **power management**, **motor drive**, **solar inverter**, **high-efficiency switching power supply** and other fields.
* 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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