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STH15NB50-VB Product details

Product introduction:

1. STH15NB50-VB Product Introduction

STH15NB50-VB is a single N-channel MOSFET in TO247 package, suitable for high-efficiency power switching and power management applications. Its maximum drain-source voltage (VDS) is 500V, which is suitable for medium-voltage high-power systems. The maximum drain current (ID) of this MOSFET is 40A, which is suitable for handling large current loads. At the same time, its on-resistance (RDS(ON)) is 80mΩ @ VGS=10V, which has low resistance and can effectively reduce switching loss and power loss. STH15NB50-VB adopts SJ_Multi-EPI technology, providing low on-resistance, high efficiency and reliability, and is suitable for various high-efficiency power management applications such as DC-DC converters, AC-DC power supplies and power tools.

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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 500V 3.8V 40A 80mΩ 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 500V 3.8V 40A SJ_Multi-EPI
VB Package Configuration VDS(V) VGS Vthyp(V) ID(A) Rds6 Technology
TO247 Single-N 500V 3.8V 40A SJ_Multi-EPI
VB Package Polarity Vz / VR Pd VF IF IR Cd Type
TO247 Single-N
2. STH15NB50-VB Detailed Parameter Description

| **Parameter Category** | **Parameter Value** | **Description** |
|---------------------|---------------------------|---------------------------------------------|
| **Package** | TO247 | Package is suitable for high power applications and has good heat dissipation capability|
| **Configuration** | Single-N-Channel | Single N-channel MOSFET, suitable for high-efficiency power switch control|
| **Drain-Source Voltage (VDS)** | 500V | Supports medium voltage applications and can withstand higher voltage loads|
| **Gate-Source Voltage (VGS)** | ±30V | Supports a wide range of gate drive voltages and is highly flexible|
| **Turning Voltage (Vth)** | 3.8V | Moderate turning voltage, suitable for standard drive circuits|
| **On-Resistance (RDS(ON))** | 80mΩ @ VGS=10V | Lower on-resistance, high efficiency and reduced switching losses|
| **Maximum drain current (ID)** | 40A | Supports high current load, suitable for high power applications|
| **Technology** | SJ_Multi-EPI | Adopts efficient Multi-EPI technology with low loss and high efficiency|

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Domain and module applications:


### 3. Application fields and modules

#### 1. **DC-DC converter**
STH15NB50-VB has a low on-resistance (80mΩ), which is very suitable for use in DC-DC converters. Its 500V drain-source voltage enables it to handle higher voltage conversion requirements, while its 40A maximum drain current allows it to adapt to higher power loads. Whether in isolated DC-DC converters or non-isolated DC-DC converters, this MOSFET can provide high-efficiency, low-loss power conversion, reduce temperature rise, and improve system efficiency.

#### 2. **AC-DC power module**
In AC-DC power modules, STH15NB50-VB is used as a high-efficiency switching element for rectification, switching regulation and other functions. Its maximum current handling capacity is 40A, which can withstand large load currents and is suitable for high-power power systems (such as solar inverters, UPS power supplies, etc.). Its maximum drain-source voltage of 500V enables it to work stably under higher voltage AC input, reducing power loss and improving the overall efficiency of the system.

#### 3. **Power tools and home appliances**
STH15NB50-VB can also be used in power management of power tools and home appliances. For power tools, the high current carrying capacity (40A) and low on-resistance (80mΩ) of MOSFET enable it to work efficiently under high load. The stability and efficiency of the power module directly affect the performance and battery life of power tools. As a power switching element, STH15NB50-VB can improve the power management efficiency of power tools and extend the use time of the equipment.

#### 4. **Electric vehicle charging system**
In electric vehicle (EV) charging systems, STH15NB50-VB can effectively support the design of high-power battery chargers. Its 500V drain-source voltage is suitable for power conversion of high-voltage battery packs, while the large current handling capacity of 40A can meet the needs of fast charging. Low on-resistance can effectively reduce the heat generated during charging, improve the efficiency of the charging system, and enhance the overall performance of electric vehicles.

#### 5. **Industrial Power Supply and Power Control System**
In industrial power supply and power control system, STH15NB50-VB can be used for high-power power management, variable frequency drive, power conditioner and other equipment. Its 500V voltage and 40A current handling capacity make it suitable for high-power industrial equipment. The low on-resistance using SJ_Multi-EPI technology enables it to have lower switching losses in high-power applications, improve overall energy efficiency, and ensure long-term stable operation of the system.

### Summary
STH15NB50-VB is a single N-channel MOSFET suitable for medium-high voltage and high-power power control applications. Its low on-resistance, high current carrying capacity, 500V drain-source voltage and 40A maximum drain current make it widely used in DC-DC converters, AC-DC power modules, power tools, industrial power supplies and electric vehicle charging systems. Its SJ_Multi-EPI technology ensures high performance and low power loss, and is an indispensable key component in efficient power control and management systems.
* 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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