### Application Fields and Modules

**2SK2158-VB** is widely used in the following fields and modules:

1. **Portable Electronics**:
- Applicable to power management modules in portable electronic products such as smartphones and tablets, such as charging management, battery management, etc.

2. **Consumer Electronics**:
- Power management and signal switching in products such as portable audio devices and handheld game consoles.

3. **Medical Electronics**:
- Used in power management modules and signal processing modules in medical equipment, such as medical imaging equipment, heart rate monitors, etc.

4. **Industrial Control**:
- Applicable to sensor signal processing, control modules in industrial automation equipment, etc.

5. **Communication Equipment**:
- Used in power amplifiers and power control modules in communication base station equipment to ensure high efficiency and stability of the equipment.

### Summary

**2SK2158-VB** is a single N-channel MOSFET suitable for low-power applications, with moderate drain-source voltage, low on-resistance and low drain current capability. It is widely used in portable electronics, consumer electronics, medical electronics, industrial control and communication equipment, providing low-power and small-size solutions for circuit design.