Product introduction：
1. Product Introduction (WST2N7002K-VB)
WST2N7002K-VB is a unipolar N-channel MOSFET in SOT23-3 package, designed for low power and high efficiency applications. Its maximum drain-source voltage (VDS) is 60V, gate-source voltage (VGS) is ±20V, and threshold voltage (Vth) is 1.7V, which is suitable for various voltage drive systems. The on-resistance (RDS(ON)) of this MOSFET is 2800mΩ at VGS=10V and 3100mΩ at VGS=4.5V. Although RDS(ON) is high, it has good withstand voltage characteristics and is suitable for low power applications. The maximum drain current (ID) is 0.3A, which is suitable for small current load applications. The technology of WST2N7002K-VB adopts Trench process, which ensures high switching efficiency and low switching loss. It is widely used in low-power power switches, protection circuits and other applications that require low current and high withstand voltage.
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Product parameter：
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds2.5 |
Rds4.5 |
Rds10 |
Technology |
| SOT23-3 |
Single-N |
60V |
20（±V） |
1.7V |
0.3A |
|
|
2800mΩ |
|
2. Detailed parameter description
| **Parameter** | **Description** |
|-------------------------|--------------------------------------------------------------------------|
| **Model** | WST2N7002K-VB |
| **Package** | SOT23-3 |
| **Configuration** | Unipolar N-channel|
| **Maximum drain-source voltage (VDS)** | 60V |
| **Gate-source voltage (VGS)** | ±20V |
| **Threshold voltage (Vth)** | 1.7V |
| **On-resistance (RDS(ON))** | 3100mΩ (VGS=4.5V), 2800mΩ (VGS=10V) |
| **Maximum drain current (ID)** | 0.3A |
| **Technology type** | Trench technology|
- **VDS**: The maximum drain-source voltage is 60V, which is suitable for low-voltage power management and control circuits.
- **VGS**: The gate-source voltage is ±20V, which is in line with the common control voltage range and can be easily compatible with microcontrollers and logic circuits.
- **Vth**: The threshold voltage is 1.7V, which is suitable for low-voltage control applications, ensuring that the MOSFET can be started at a lower gate voltage.
- **RDS(ON)**: At VGS=10V, the on-resistance is 2800mΩ and at VGS=4.5V it is 3100mΩ. Although the RDS(ON) is high, it is suitable for low current loads and simple switching applications.
- **ID**: The maximum drain current is 0.3A, which is suitable for small current loads and is particularly suitable for low power applications.
Domain and module applications：
3. Applicable fields and modules
WST2N7002K-VB is mainly suitable for the following fields and modules:
- **Low power supply and switch control**: WST2N7002K-VB is suitable for low power power supply systems, such as battery-powered devices, low power LED drivers and simple DC-DC converters. Due to its higher RDS(ON), it is more suitable for low current load applications and can effectively control power consumption.
- **Protection circuit**: This MOSFET is often used in battery protection circuits, voltage overvoltage protection and short circuit protection. In such occasions, its superior voltage resistance and low operating current make it a reliable choice.
- **Switching circuit and low power load**: In some simple switching circuits, WST2N7002K-VB is used for the control of low current loads. Its higher RDS(ON) is suitable for applications that do not require high-efficiency switches, such as load switches, battery charger control circuits, etc.
- **Consumer Electronics**: In some consumer electronics products with low power requirements, the WST2N7002K-VB is suitable for providing switch control, load switching and other functions. For example, it can be used in home appliances, sensor control, portable devices, etc.
- **Low Current Signal Control**: This MOSFET is suitable for the transmission or switching of control signals, such as in microcontrollers, sensor networks and small embedded systems. It can provide reliable switching operation in low current environments.
- **Simple Power Management System**: For some systems that require simple power management, the WST2N7002K-VB is suitable for battery management systems, power distribution systems, etc. due to its lower maximum current and withstand voltage characteristics.
In general, the WST2N7002K-VB is suitable for low current, low power switch control circuits, especially in some application scenarios with high withstand voltage and low power consumption, and can effectively provide the required power management and load control functions.
* 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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