ELM33400CA-S-VB is a VBsemi brand N-channel trench field effect transistor (FET), the specific parameters are as follows:

- Package: SOT23-3
- Rated voltage: 30V
- Rated current: 6.5A
- On resistance: 30mΩ @ VGS=10V, VGS=20V
- Threshold voltage: 1.2~2.2V

**Application introduction:**
ELM33400CA-S-VB is suitable for various power management and switching applications, especially in the following fields and modules:

1. **Power supply module:** Used to design stable and efficient power supply modules, such as switching power supplies, DC-DC converters, etc.

2. **Motor drive:** In motor control systems, it can be used to design motor drive modules to provide efficient power management and control.

3. **LED lighting:** In LED lighting systems, it can be used to design LED drivers to ensure efficient power management and brightness control.

4. **Battery management:** Used to design battery charge and discharge management systems to ensure effective use and safety of batteries.

The features of the ELM33400CA-S-VB make it widely applicable in power control and management applications in various fields.