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SFF740-VB Product details

Product introduction:

**SFF740-VB Product Introduction**

The SFF740-VB is a single N-Channel MOSFET in a TO220F package, suitable for medium and high voltage power management and switching applications. The device has a maximum drain-source voltage (VDS) of 550V, which can meet the needs of medium and high voltage applications, and its gate-source voltage (VGS) is ±30V, which is suitable for a variety of control circuits and switching modes. With a threshold voltage (Vth) of 3V and a low on-resistance (RDS(ON)) of 260mΩ@VGS=10V, the SFF740-VB provides excellent power transmission efficiency and reliability.

With a maximum drain current of 18A, the MOSFET is suitable for high-power applications, especially in power supply designs that require high voltage tolerance and high current carrying capacity. The Plannar technology used ensures low switching losses while optimizing the conductive performance, improving the overall efficiency and thermal management capabilities of the system. The SFF740-VB is ideal for applications such as power converters, electric drive systems, inverters, etc.

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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 550V 3V 18A 260mΩ 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 550V 3V 18A Plannar
VB Package Configuration VDS(V) VGS Vthyp(V) ID(A) Rds6 Technology
TO220F Single-N 550V 3V 18A Plannar
VB Package Polarity Vz / VR Pd VF IF IR Cd Type
TO220F Single-N
**SFF740-VB detailed parameter description**

- **Package type**: TO220F
- **Configuration**: Single N-Channel
- **Drain-source voltage (VDS)**: 550V
- **Gate-source voltage (VGS)**: ±30V
- **Threshold voltage (Vth)**: 3V
- **On-resistance (RDS(ON))**:
- VGS = 10V: 260mΩ
- **Drain current (ID)**: 18A
- **Technology**: Plannar
- **Maximum power consumption**: About 50W (the specific value depends on the working conditions and heat dissipation capability)
- **Operating temperature range**: -55°C to +150°C
- **Maximum thermal resistance (Junction-to-Case)**: < 4.5°C/W
- **Application scenarios**: power management, high voltage power conversion, inverter, motor drive, etc.

Domain and module applications:

**SFF740-VB Application Fields and Module Examples**

1. **Power Converters**:
SFF740-VB performs well in AC-DC and DC-DC converters. Its high withstand voltage (550V) and high current carrying capacity (18A) make it ideal for handling high power and high voltage currents in power conversion applications. In power supply systems, especially in data centers or industrial power modules, SFF740-VB can provide efficient power conversion and stable current control.

2. **Inverters**:
In solar inverters, electric vehicle (EV) inverters, and other power conversion devices, SFF740-VB is a key switching element that provides reliable switching control in high voltage environments. Its low on-resistance can reduce switching losses and improve the efficiency of the inverter, thereby optimizing energy conversion and extending equipment life.

3. **Motor Drivers**:
SFF740-VB is an ideal choice for motor drive circuits, especially in industrial automation, power tools, electric vehicles and other fields. Its high current carrying capacity and low on-resistance ensure the high efficiency and stability of the motor control system. By optimizing the switching frequency and reducing the current loss, SFF740-VB provides a more precise and reliable motor drive.

4. **Battery Chargers**:
SFF740-VB is also suitable for battery management system (BMS) and charger design, especially in charging devices that require high voltage and high current. Its high withstand voltage capability ensures that it can withstand the high voltage load during charging, while the low on-resistance and high current capability ensure low power loss and high efficiency during charging.

5. **Power Protection**:
In high voltage protection circuits, SFF740-VB can be used as overvoltage protection, short circuit protection and thermal protection modules. Its high voltage and high current resistance provide important switching and limiting functions when protecting the power system from abnormal voltage and current interference.

6. **High Power LED Drivers**:
In LED lighting drivers, SFF740-VB can be used as a key switching element in high power LED driver circuits. Through its low RDS(ON) characteristics, it effectively reduces power loss, improves overall system efficiency, and ensures the stability and long life of LED lighting.

**Summary**:

SFF740-VB is a high-efficiency N-Channel MOSFET suitable for a variety of applications such as power management, inverters, motor drives, and high power LED drivers. Its high voltage tolerance, low on-resistance, and high current capability make it an ideal choice for high-efficiency power systems, power conversion, and electric drive systems. Whether in high power power supply design or electric vehicle applications, SFF740-VB can provide excellent performance.
* 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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