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STP9NK50-VB Product details

Product introduction:

**STP9NK50-VB MOSFET - Product Introduction**

STP9NK50-VB is a single N-channel power MOSFET in TO220F package, manufactured using traditional planar technology, suitable for high voltage and medium power switching applications. Its maximum drain-source voltage (VDS) is up to 650V, suitable for power modules, power conversion equipment and other occasions that require high voltage tolerance. The low gate threshold voltage (Vth) and relatively high on-resistance (RDS(ON)) of the STP9NK50-VB MOSFET make it a stable and cost-effective solution for a variety of applications in the field of power electronics, especially those systems that require stable operation at higher voltages and medium current loads.

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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 12A 680mΩ Plannar
VB Package Configuration VCE VGE VGEth(V) VCEsat15V ICE Technology
TO220F Single-N Plannar
VB Package Configuration VDS(V) VGS Vthyp(V) ID(A) Rds18 Technology
TO220F Single-N 650V 3.5V 12A Plannar
VB Package Configuration VDS(V) VGS Vthyp(V) ID(A) Rds6 Technology
TO220F Single-N 650V 3.5V 12A Plannar
VB Package Polarity Vz / VR Pd VF IF IR Cd Type
TO220F Single-N
**Detailed parameter description**

- **Package**: TO220F
- **Configuration**: Single-N-Channel
- **Maximum drain-source voltage (VDS)**: 650V
- **Maximum gate-source voltage (VGS)**: ±30V
- **Gate threshold voltage (Vth)**: 3.5V
- **On-resistance (RDS(ON))**:
- 680mΩ (VGS = 10V)
- **Maximum drain current (ID)**: 12A
- **Technology**: Plannar Technology

**Feature description**:
- **High voltage withstand capability**: The maximum VDS is 650V, which can withstand high voltage switching and power conversion applications, and is particularly suitable for high voltage environments.
- **Gate threshold voltage (Vth)**: The gate turn-on voltage is 3.5V, which is suitable for most control circuits and ensures low-voltage drive.
- **On-resistance**: RDS(ON) is 680mΩ, which is relatively high, but it can provide sufficient performance for some medium-power applications.
- **High reliability**: Plannar technology ensures the stability and long-term reliability of MOSFET in high voltage, high temperature and other environments.

Domain and module applications:

**Applications and Module Examples**

1. **Power Converters**:
STP9NK50-VB is suitable for switching applications in high-voltage power converters, such as DC-DC converters, AC-DC power supplies, etc. It can provide stable switching performance in high-voltage working environments and effectively manage voltage fluctuations during power conversion. It is suitable for application scenarios such as server power supplies and battery chargers.

2. **Motor Control**:
This MOSFET is particularly suitable for use in motor drive circuits, especially high-voltage motor control systems. Since STP9NK50-VB can work stably at a voltage of 650V, it is suitable for high-power motor drives, power tools, and home appliances that require high voltage tolerance.

3. **Industrial Power Systems**:
In industrial power systems, such as inverters, programmable power supplies, etc., STP9NK50-VB MOSFET can work stably in high-voltage environments and has good switching performance. It can effectively regulate current and voltage to achieve efficient power conversion. Applicable to power automation equipment, control systems and power dispatching modules.

4. **Welding power supply**:
In welding power supply modules, STP9NK50-VB is very suitable for welding control systems and inverter power supply modules due to its high VDS and withstand voltage characteristics. These systems usually need to operate stably at voltages above 650V, and STP9NK50-VB can provide reliable switching performance to ensure stable and efficient current during the welding process.

5. **Household appliances**:
STP9NK50-VB is also suitable for power conversion modules in some household appliances, especially those that require higher operating voltages, such as power boards for home appliances such as air conditioners, electric water heaters, and refrigerators. These home appliances usually need to convert AC voltage into a voltage suitable for the internal circuit, and STP9NK50-VB provides reliable current control in such applications.

6. **UPS system (uninterruptible power supply)**:
In the uninterruptible power supply system (UPS), STP9NK50-VB can be used in the power conversion module to support the switching between battery power and main power supply, ensuring stable power supply when the power grid is out of power.

Through these application examples, it can be seen that STP9NK50-VB is a MOSFET suitable for various high-voltage applications. With its high voltage carrying capacity and stable working performance, it is widely used in power electronics, industrial control, power management 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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