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TF9N70-VB Product details

Product introduction:

TF9N70-VB MOSFET Product Introduction

TF9N70-VB is a unipolar N-type MOSFET in TO220F package with 700V withstand voltage and 5A maximum drain current (I_D). It adopts SJ_Multi-EPI technology, which is suitable for high voltage applications while providing excellent switching performance. With a threshold voltage (V_th) of 3.5V and an on-resistance (R_DS(ON)) of 1100mΩ @ V_GS = 10V, this MOSFET is suitable for medium power and high voltage power management and switching applications. TF9N70-VB is designed to provide stable performance in medium current environments and is widely used in applications requiring high withstand voltage and high reliability.

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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 700V 3.5V 5A 1100mΩ 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 700V 3.5V 5A SJ_Multi-EPI
VB Package Configuration VDS(V) VGS Vthyp(V) ID(A) Rds6 Technology
TO220F Single-N 700V 3.5V 5A SJ_Multi-EPI
VB Package Polarity Vz / VR Pd VF IF IR Cd Type
TO220F Single-N
TF9N70-VB MOSFET detailed parameter description

- **Package type**: TO220F
- **Configuration**: Unipolar N-type MOSFET (Single-N-Channel)
- **Drain to source voltage (V_DS)**: 700V
- **Gate to source voltage (V_GS)**: ±30V
- **Threshold voltage (V_th)**: 3.5V
- **On-resistance (R_DS(ON))**:
- 1100mΩ @ V_GS = 10V
- **Maximum drain current (I_D)**: 5A
- **Technology**: SJ_Multi-EPI technology
- **Maximum power loss**: Although the on-resistance is high (1100mΩ), this MOSFET is suitable for high-voltage applications with low to medium power.

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Domain and module applications:

Application fields and module examples

1. **High-voltage power switch**:
TF9N70-VB is suitable for high-voltage power switching applications. In some power conversion circuits that require high voltage, such as AC-DC power converters or SMPS (switch mode power supply), TF9N70-VB can be used as a high-voltage switching element to provide stable voltage and current regulation. Despite its high on-resistance, it can still work effectively in medium current and high voltage applications.

2. **Motor drive control**:
TF9N70-VB can be used as a switching element in some motor drive modules that require high voltage and medium current control. It is suitable for controlling current in power tools, household appliances or other small industrial motors. For example, in power tools, electric vehicle drive control modules, TF9N70-VB can provide reliable current switching and high voltage tolerance.

3. **High-voltage protection circuit**:
TF9N70-VB is very suitable for high-voltage protection circuits due to its 700V withstand voltage. For example, in the overvoltage protection, overcurrent protection and other protection circuits in the battery management system (BMS), TF9N70-VB can be used as the main switching element to effectively protect the battery system from overvoltage damage in a high-voltage environment.

4. **High-voltage filter and regulation circuit**:
TF9N70-VB can be used as a switching device in high-voltage filters and voltage regulation circuits in some power systems. It can operate stably under high-voltage environments and effectively regulate the output voltage. Such applications usually require MOSFETs to provide fast switching at high voltages while maintaining low power loss and high reliability.

5. **Power factor correction (PFC) circuit**:
TF9N70-VB is also widely used in some power factor correction circuits. It can be used as a high-voltage switching element to improve the power factor of the power system and reduce the impact of harmonics, thereby improving power efficiency. Especially in high-voltage applications (such as industrial power systems, household appliance power supplies), TF9N70-VB provides high-voltage support and ensures the stability of the power system.

6. **High-voltage Switching Power Supply (SMPS)**:
TF9N70-VB can be used in high-voltage switching power supplies (SMPS), especially for applications with voltage requirements of around 700V. For example, it can be used in power modules in high-voltage environments such as converters, voltage regulators, and DC-DC converters (DC-DC) to provide high-voltage support and effectively control current.

7. **Electronic Ballast**:
In some high-voltage electronic ballasts, TF9N70-VB can be used as a switching device. Electronic ballasts are used in high-voltage lighting equipment, such as gas discharge lamps, fluorescent lamps, etc. TF9N70-VB can help regulate current and control the startup process, ensuring stable performance when working under high voltage conditions.

8. **Power Management Module**:
In the Power Management Units (PMU), TF9N70-VB can be used as a power switch to manage the switching between batteries or power sources. It is suitable for power management systems that require high voltage resistance, stability and reliability, especially for battery and load switching applications in automotive electronics and power systems. TF9N70-VB provides efficient current control.

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* 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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