**Domains and module applications:** 1. **Power amplifier module: **Due to the high current rating and low switching resistance, it is suitable for designing electronic equipment requiring high power amplification. 2. **Switching power supply module: **In the power switching stage of switching power supplies, efficient power conversion is ensured. 3. **Power management module: **In power management circuits, used to achieve effective power control and regulation. **Precautions: **In your design, be sure to use the transistor correctly according to the manufacturer's data sheet and application notes to ensure optimal performance and reliability.