W9NK70Z-VB Product details
Product introduction:
The W9NK70Z-VB is a single N-channel MOSFET in a TO247 package with a drain-source voltage (VDS) of 700V, suitable for high-voltage switching power supplies, power conversion, inverters and industrial control systems. The gate-source voltage (VGS) of this MOSFET is ±30V, the threshold voltage (Vth) is 3.5V, and it can provide a maximum drain current (ID) of 11A. The W9NK70Z-VB adopts advanced SJ_Multi-EPI technology, with high switching frequency, low switching loss and excellent thermal management performance, which can effectively reduce the thermal load of the system and improve conversion efficiency.
Although its on-resistance (RDS(ON)) is relatively high (450mΩ @ VGS = 10V), it is still suitable for medium and high power applications, especially in situations where high voltage and high current carrying capacity are required. The W9NK70Z-VB is an ideal switching element in power management, home appliance control, power tools, inverters and other fields.
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Product parameter:
| VB Package | Configuration | VDS(V) | VGS | Vthyp(V) | ID(A) | Rds2.5 | Rds4.5 | Rds10 | Technology |
|---|---|---|---|---|---|---|---|---|---|
| TO247 | Single-N | 700V | 3.5V | 11A | 450mΩ | SJ_Multi-EPI |
| VB Package | Configuration | VCE | VGE | VGEth(V) | VCEsat15V | ICE | Technology |
|---|---|---|---|---|---|---|---|
| TO247 | Single-N | SJ_Multi-EPI |
| VB Package | Configuration | VDS(V) | VGS | Vthyp(V) | ID(A) | Rds18 | Technology |
|---|---|---|---|---|---|---|---|
| TO247 | Single-N | 700V | 3.5V | 11A | SJ_Multi-EPI |
| VB Package | Configuration | VDS(V) | VGS | Vthyp(V) | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| TO247 | Single-N | 700V | 3.5V | 11A | SJ_Multi-EPI |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| TO247 | Single-N |
- **Package type**: TO247
- **Configuration**: Single-N-Channel
- **Drain-source voltage (VDS)**: 700V
- **Gate-source voltage (VGS)**: ±30V
- **Threshold voltage (Vth)**: 3.5V
- **On-resistance (RDS(ON))**: 450mΩ @ VGS = 10V
- **Maximum drain current (ID)**: 11A
- **Technology**: SJ_Multi-EPI — Provides higher switching efficiency for high-voltage and high-current applications
- **Application scenarios**: High-voltage power management, power conversion, inverters, power tools, etc.
Domain and module applications:
1. **High-voltage power management**
W9NK70Z-VB is suitable for high-voltage power management applications, especially when high-voltage stability is required. The drain-source voltage of this MOSFET can reach 700V, which is very suitable for power systems with high voltage input and can support high-power current switching. This makes W9NK70Z-VB an ideal choice for AC-DC converters, power adapters and high-voltage battery management systems, which can efficiently manage power transmission and reduce system power losses.
2. **Power conversion and converter applications**
In power conversion applications such as DC-DC converters and AC-DC converters, W9NK70Z-VB can provide excellent switching characteristics and handle high voltages and high currents. Its high voltage tolerance (700V) makes it suitable for industrial power conversion equipment and battery chargers, which usually need to operate stably in a high voltage range. In high-frequency switching mode, the excellent switching characteristics and thermal management capabilities of W9NK70Z-VB can help the system achieve high-efficiency conversion.
3. **Inverter**
In inverter applications, W9NK70Z-VB can withstand drain-source voltages up to 700V and is widely used in solar photovoltaic inverters, electric vehicle inverters and other industrial inverters. Inverters are used to convert DC power into AC power. W9NK70Z-VB can effectively improve conversion efficiency, reduce heat loss, and support efficient power output. Its good switching speed and high-voltage resistance make it very suitable for uninterruptible power supply (UPS) systems, wind power generation and other fields.
4. **Power tools and home appliance control systems**
The high voltage tolerance of W9NK70Z-VB makes it used in home appliance control systems and power tools. In power tools such as electric drills, saws, grinders and other equipment, this MOSFET controls the drive of the motor and battery charging by efficiently switching current. In home appliance control systems, such as air conditioners, refrigerators, and washing machines, the W9NK70Z-VB can be used for power switching and current regulation, helping to achieve efficient power management and reduce energy consumption.
5. **Power Switching and Control Systems**
In various power switching and power regulation systems, the W9NK70Z-VB plays an important role as a medium- and high-voltage switching element. It can provide high voltage carrying capacity and strong current control capabilities, making it ideal for factory automation, distribution switches, and power control systems. In these applications, the W9NK70Z-VB reduces heat loss through efficient switching operations, helping equipment to operate stably and improve overall energy efficiency.
6. **Battery Management System (BMS)**
In battery management systems, the W9NK70Z-VB is used as a switching element to manage the battery charging and discharging process. Its high voltage and high current handling capabilities make it ideal for large battery systems, such as electric vehicle (EV) battery management and energy storage systems. W9NK70Z-VB can ensure the stability of the battery in a high-voltage environment, and at the same time, by precisely controlling the current flow, extend the battery life and improve the reliability of the system.
7. **Industrial power supply and power grid equipment**
The high voltage resistance of W9NK70Z-VB makes it widely used in industrial power supply and power grid equipment. For example, in power grid regulation and power conversion equipment, W9NK70Z-VB can be used as a switching element to support the balance of grid voltage and current regulation, ensuring the efficient and safe operation of power equipment.
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