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STU405DH-VB Product details

Product introduction:

STU405DH-VB MOSFET Product Introduction

**STU405DH-VB** is a **dual-channel (Common Drain) N+P-type MOSFET**, using **TO252-4L package**, and is designed based on **Trench technology**. This MOSFET has a **±40V drain-source voltage (VDS)** and supports **±50A maximum drain current (ID)**, suitable for a variety of high-current, high-power applications. The device combines the advantages of **N-type and P-type channel** MOSFETs, suitable for power switching, inverters, battery management systems and other fields, with excellent current control performance. Its on-resistance is very low, **14mΩ (N and P channels) @VGS=4.5V** and **16mΩ (N and P channels) @VGS=10V**, respectively, which effectively reduces power loss and optimizes system efficiency.

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Product parameter:

VB Package Configuration VDS(V) VGS Vthyp(V) ID(A) Rds2.5 Rds4.5 Rds10 Technology
TO252-4L Common Drain-N+P ±40V 1.8/-1.7V ±50A 16/16mΩ Trench
VB Package Configuration VCE VGE VGEth(V) VCEsat15V ICE Technology
TO252-4L Common Drain-N+P Trench
VB Package Configuration VDS(V) VGS Vthyp(V) ID(A) Rds18 Technology
TO252-4L Common Drain-N+P ±40V 1.8/-1.7V ±50A Trench
VB Package Configuration VDS(V) VGS Vthyp(V) ID(A) Rds6 Technology
TO252-4L Common Drain-N+P ±40V 1.8/-1.7V ±50A Trench
VB Package Polarity Vz / VR Pd VF IF IR Cd Type
TO252-4L Common Drain-N+P
STU405DH-VB MOSFET Detailed parameter description

- **Model**: STU405DH-VB
- **Package**: TO252-4L
- **Configuration**: Common Drain-N+P-Channel
- **Drain-Source Voltage (VDS)**: ±40V
- **Gate-Source Voltage (VGS)**: ±20V
- **Threshold Voltage (Vth)**:
- N-channel: 1.8V
- P-channel: -1.7V
- **On-resistance (RDS(ON))**:
- N-channel: 14mΩ @ VGS=4.5V, 16mΩ @ VGS=10V
- P-channel: 14mΩ @ VGS=4.5V, 16mΩ @ VGS=10V
- **Maximum drain current (ID)**: ±50A
- **Technology**: Trench
- **Operating temperature range**: Please refer to the product data sheet
- **Maximum power loss**: Please refer to the product data sheet
- **Application areas**: Battery management systems, inverters, power modules, DC-DC converters, load switches, etc.

Domain and module applications:

Application fields and module examples

1. **Inverter application**
**STU405DH-VB** MOSFET is widely used in **inverters**, especially in **solar inverters** and **wind inverters**, due to its low on-resistance and high current carrying capacity, it can achieve efficient power conversion and ensure lower energy loss. In these applications, MOSFET is responsible for converting direct current (DC) to alternating current (AC) and needs to handle higher power loads. Low RDS(ON) value and high current carrying capacity make it very suitable in high-efficiency inverters.

2. **Battery Management System (BMS)**
In **Battery Management System (BMS), **STU405DH-VB** MOSFET can be used for battery charge and discharge control and battery protection. Through its common drain N+P channel design, it can efficiently switch large currents to ensure stable operation of the battery. Its low on-resistance helps reduce energy loss and improve system efficiency, which is particularly critical in electric vehicles (EVs) and energy storage systems.

3. **DC-DC Converters**
**STU405DH-VB** is widely used in **DC-DC converters**, especially in scenarios that require bipolar switching. Because it has a combination of **N-type and P-type channels**, it can achieve positive and negative current flow in a single MOSFET, making it ideal for complex power management systems such as **Buck-Boost converters**. This enables it to provide stable current conversion in devices such as chargers, LED driver power supplies, and power adapters.

4. **Load Switch**
This MOSFET is also widely used in **load switch** applications, especially in **industrial control systems**, **automotive electronics**, and **smart homes**. In these applications, **STU405DH-VB** provides efficient switching control through low RDS(ON) and is capable of carrying large current loads, making it suitable for stable connection and disconnection of switching loads and power supplies.

5. **Power management system**
**STU405DH-VB** is suitable for a variety of high-efficiency **power management modules**, including **switching power supplies (SMPS)**, **on-board power management systems**, and **high-efficiency battery management**. Its low on-resistance and high current capability make it an ideal choice for these applications, especially in power management systems that require low power consumption and high efficiency.

6. **Automotive electronics**
In the **automotive electronics** field, **STU405DH-VB** has a variety of applications, especially in the battery management system (BMS) of electric vehicles (EV) and hybrid electric vehicles (HEV), which can efficiently manage the charging and discharging process of large currents to ensure that the battery operates under high-efficiency conditions. In addition, it can also be used in automotive power modules such as **on-board chargers** and **electric drive systems** to improve the overall efficiency and stability of the system.

* 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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