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STK18N05-VB Product details

Product introduction:

STK18N05-VB Product Introduction

STK18N05-VB is a **TO92** package **single N-channel power MOSFET**, using **Trench technology**, with **60V** drain-source voltage (VDS) and **28A** maximum drain current (ID). The **on-resistance** (RDS(ON)) of this MOSFET is **45.6mΩ** at VGS=4.5V and **38mΩ** at VGS=10V, showing low conduction loss, suitable for low to medium current power switching applications. STK18N05-VB adopts **TO92** small package, with small size and excellent performance, suitable for power management systems with limited space and high power efficiency requirements.

This product is suitable for **high-efficiency switching power supplies**, **battery management systems**, **power tools** and **home appliance power management systems**, especially in applications requiring low on-resistance and high current carrying capacity. The small package of the STK18N05-VB makes it very advantageous in space-constrained environments.

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Product parameter:

VB Package Configuration VDS(V) VGS Vthyp(V) ID(A) Rds2.5 Rds4.5 Rds10 Technology
TO92 Single-N 60V 2V 28A 38mΩ Trench
VB Package Configuration VCE VGE VGEth(V) VCEsat15V ICE Technology
TO92 Single-N Trench
VB Package Configuration VDS(V) VGS Vthyp(V) ID(A) Rds18 Technology
TO92 Single-N 60V 2V 28A Trench
VB Package Configuration VDS(V) VGS Vthyp(V) ID(A) Rds6 Technology
TO92 Single-N 60V 2V 28A Trench
VB Package Polarity Vz / VR Pd VF IF IR Cd Type
TO92 Single-N
STK18N05-VB Detailed Parameter Description

| **Parameter** | **Value** | **Description** |
|-------------------------|-------------------------------|--------------------------------------------------|
| **Package Type** | TO92 | TO92 package, small package, suitable for space-constrained applications. |
| **Channel Configuration** | Single N-Channel | Single N-Channel configuration, suitable for traditional power switch applications. |
| **Drain-Source Voltage (VDS)** | 60V | Maximum drain-source voltage is 60V, suitable for low to medium voltage power switch applications. |
| **Gate-Source Voltage (VGS)** | ±20V | Maximum gate-source voltage is ±20V, suitable for a variety of drive circuit designs. |
| **Threshold Voltage (Vth)** | 2V | Threshold voltage is 2V, suitable for standard drive circuits. |
| **On-resistance (RDS(ON))** | 45.6mΩ @ VGS=4.5V | The on-resistance is 45.6mΩ at VGS=4.5V, suitable for low to medium current applications. |
| **On-resistance (RDS(ON))** | 38mΩ @ VGS=10V | The on-resistance is 38mΩ at VGS=10V, suitable for high current applications to improve efficiency. |
| **Drain current (ID)** | 28A | The maximum drain current is 28A, suitable for medium current power switch applications. |
| **Technology type** | Trench | Using trench technology, suitable for high-efficiency power switch design. |

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Domain and module applications:

Application fields and module examples

1. **Switching Power Supply (SMPS)**
STK18N05-VB is suitable for **switching power supply (SMPS)**, especially in **DC-DC converter** and **AC-DC power adapter**. Due to its **38mΩ** low on-resistance, this MOSFET can effectively reduce power loss and improve conversion efficiency in power conversion, and is particularly suitable for applications with medium power requirements, such as **portable power** and **small power adapter**.

2. **Battery Management System (BMS)**
STK18N05-VB is an ideal choice for **battery management system (BMS)**, which can realize efficient switching of **battery charge and discharge control**, and is particularly suitable for **battery protection circuit** and **battery balancing system**. Its **28A** drain current and low on-resistance enable it to carry large currents, ensuring efficient power management and safety protection in the battery management process.

3. **Power tools**
In **power tools**, STK18N05-VB can be used as a **power switch**, especially for medium current battery-powered tools such as **electric screwdrivers**, **electric saws**, etc. Its high current carrying capacity and low on-resistance enable it to provide efficient and stable current control, ensuring long-term operation of the tool.

4. **Home appliance power management**
STK18N05-VB has a wide range of applications in **home appliance power management systems**, especially for low to medium power **power adapters** and **smart home appliances**. It can provide stable power conversion in home appliances and is suitable for **LED lighting**, **air conditioner power** and **TV power management systems**, achieving efficient power control and low energy consumption.

5. **Automotive electronics**
In **automotive electronics**, the STK18N05-VB can be used in **battery power management systems** and **on-board power converters**, especially in medium and low voltage circuits, to provide efficient and reliable switching control. Its **60V** drain-source voltage and **28A** drain current make it an excellent performer in electric vehicle **battery management systems** (BMS), helping to improve vehicle energy efficiency and extend battery life.

6. **Industrial control systems**
The STK18N05-VB can be used as a **power switch** in **industrial automation** and **control systems**, for various **PLC power modules** or **motor drive systems**. It provides stable switching characteristics in the medium voltage and medium current range, which helps to improve the control accuracy and energy efficiency of industrial equipment, especially in **conveyor belt motor control**, **automated robot systems** and other fields.

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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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