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UD4002-VB Product details
Back to previous pageProduct introduction：
**1. Product Introduction: **
**UD4002-VB** is a high-performance **N-Channel MOSFET** in **TO252** package, suitable for applications requiring high current drive and low power loss. With a high withstand voltage of **40V** and a maximum drain current of **55A**, this MOSFET can meet the needs of power management, electric drive and other high-power applications. Its **RDS(ON)** is only **12mΩ** at **VGS=10V** and **14mΩ** at **VGS=4.5V**, which means that its conduction loss is very low, effectively improving the efficiency of the system and reducing heat generation. With its **Trench technology**, **UD4002-VB** has good performance in high-frequency switching applications. It is widely used in power supply, power tools, automotive electronics, DC-DC converters and other fields.
**UD4002-VB** is a high-performance **N-Channel MOSFET** in **TO252** package, suitable for applications requiring high current drive and low power loss. With a high withstand voltage of **40V** and a maximum drain current of **55A**, this MOSFET can meet the needs of power management, electric drive and other high-power applications. Its **RDS(ON)** is only **12mΩ** at **VGS=10V** and **14mΩ** at **VGS=4.5V**, which means that its conduction loss is very low, effectively improving the efficiency of the system and reducing heat generation. With its **Trench technology**, **UD4002-VB** has good performance in high-frequency switching applications. It is widely used in power supply, power tools, automotive electronics, DC-DC converters 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 |
|---|---|---|---|---|---|---|---|---|---|
| TO252 | Single-N | 40V | 2.5V | 55A | 12mΩ | Trench |
| VB Package | Configuration | VCE | VGE | VGEth(V) | VCEsat15V | ICE | Technology |
|---|---|---|---|---|---|---|---|
| TO252 | Single-N | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds18 | Technology |
|---|---|---|---|---|---|---|---|
| TO252 | Single-N | 40V | 2.5V | 55A | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| TO252 | Single-N | 40V | 2.5V | 55A | Trench |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| TO252 | Single-N |
**2. Detailed parameter description: **
- **Model**: UD4002-VB
- **Package type**: TO252
- **Configuration**: Single N-Channel MOSFET
- **Maximum drain-source voltage (VDS)**: 40V
- **Maximum gate-source voltage (VGS)**: ±20V
- **Gate threshold voltage (Vth)**: 2.5V
- **On-resistance (RDS(ON))**:
- **VGS = 4.5V**: 14mΩ
- **VGS = 10V**: 12mΩ
- **Maximum drain current (ID)**: 55A
- **Power loss (Pd)**: About 30W (depending on the working environment and application)
- **Switching speed**: High-speed switching characteristics, supporting high-frequency operation
- **Reverse recovery time (Trr)**: Fast reverse recovery time, suitable for high frequency switching
- **Input capacitance (Ciss)**: Approx. 3200pF
- **Output capacitance (Coss)**: Approx. 600pF
- **Gate capacitance (Crss)**: Approx. 60pF
- **Operating temperature range**: -55°C to +150°C
- **Technology type**: Trench technology
- **Maximum drain power loss**: 0.9W (typ)
- **Model**: UD4002-VB
- **Package type**: TO252
- **Configuration**: Single N-Channel MOSFET
- **Maximum drain-source voltage (VDS)**: 40V
- **Maximum gate-source voltage (VGS)**: ±20V
- **Gate threshold voltage (Vth)**: 2.5V
- **On-resistance (RDS(ON))**:
- **VGS = 4.5V**: 14mΩ
- **VGS = 10V**: 12mΩ
- **Maximum drain current (ID)**: 55A
- **Power loss (Pd)**: About 30W (depending on the working environment and application)
- **Switching speed**: High-speed switching characteristics, supporting high-frequency operation
- **Reverse recovery time (Trr)**: Fast reverse recovery time, suitable for high frequency switching
- **Input capacitance (Ciss)**: Approx. 3200pF
- **Output capacitance (Coss)**: Approx. 600pF
- **Gate capacitance (Crss)**: Approx. 60pF
- **Operating temperature range**: -55°C to +150°C
- **Technology type**: Trench technology
- **Maximum drain power loss**: 0.9W (typ)
Domain and module applications：
**3. Application fields and module examples: **
**UD4002-VB** is a highly efficient **N-Channel MOSFET**, suitable for a variety of applications that require high performance, high power handling and low loss. The following are its specific applications in different fields and modules:
# **1. Power supply and DC-DC converter**
In **power management systems**, especially **DC-DC converters**, **UD4002-VB** can effectively reduce power losses and improve the overall efficiency of the system with its low on-resistance (RDS(ON)) and high current carrying capacity. It is commonly used in switching power supplies (SMPS), high-efficiency power conversion modules, etc. Its high-speed switching characteristics make it particularly excellent in power systems that require high-frequency conversion.
# **6. Industrial automation and servo drive**
In **industrial automation systems** and **servo drive** modules, **UD4002-VB**, as a high-speed switching device, can provide stable current control to meet the needs of high-load motor and sensor drives. Its high current carrying capacity and fast switching characteristics help improve the response speed and control accuracy of industrial equipment.
# **7. Consumer Electronics**
**UD4002-VB** is also suitable for some **consumer electronics**, such as **smart home devices**, **audio systems** and **power management of mobile devices**. It can provide efficient power conversion, ensure stable operation of equipment, reduce power loss and extend battery life.
**Summary: **
**UD4002-VB** is an **N-Channel MOSFET** with **high current carrying capacity**, **low on-resistance** and **high-speed switching characteristics**. It is widely used in **power management**, **electric drive**, **automotive electronics**, **DC-DC converters** and **battery management systems**. Its **40V** high withstand voltage capability and **55A** high current carrying capacity enable it to perform well in various high-efficiency and high-load power electronic systems. **UD4002-VB** has good performance advantages and is particularly suitable for use in applications requiring high frequency and low power loss.
**UD4002-VB** is a highly efficient **N-Channel MOSFET**, suitable for a variety of applications that require high performance, high power handling and low loss. The following are its specific applications in different fields and modules:
# **1. Power supply and DC-DC converter**
In **power management systems**, especially **DC-DC converters**, **UD4002-VB** can effectively reduce power losses and improve the overall efficiency of the system with its low on-resistance (RDS(ON)) and high current carrying capacity. It is commonly used in switching power supplies (SMPS), high-efficiency power conversion modules, etc. Its high-speed switching characteristics make it particularly excellent in power systems that require high-frequency conversion.
# **6. Industrial automation and servo drive**
In **industrial automation systems** and **servo drive** modules, **UD4002-VB**, as a high-speed switching device, can provide stable current control to meet the needs of high-load motor and sensor drives. Its high current carrying capacity and fast switching characteristics help improve the response speed and control accuracy of industrial equipment.
# **7. Consumer Electronics**
**UD4002-VB** is also suitable for some **consumer electronics**, such as **smart home devices**, **audio systems** and **power management of mobile devices**. It can provide efficient power conversion, ensure stable operation of equipment, reduce power loss and extend battery life.
**Summary: **
**UD4002-VB** is an **N-Channel MOSFET** with **high current carrying capacity**, **low on-resistance** and **high-speed switching characteristics**. It is widely used in **power management**, **electric drive**, **automotive electronics**, **DC-DC converters** and **battery management systems**. Its **40V** high withstand voltage capability and **55A** high current carrying capacity enable it to perform well in various high-efficiency and high-load power electronic systems. **UD4002-VB** has good performance advantages and is particularly suitable for use in applications requiring high frequency and low power loss.
* 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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