**VBsemi J285-VB transistor**

- **Silkscreen:** VB264K
- **Brand:** VBsemi
- **Parameters:**
- Package: SOT23
- Channel type: P—Channel
- Maximum withstand voltage: -60V
- Maximum current: -0.5A
- Static resistance (RDS(ON)): 3000mΩ@VGS=10V, VGS=20V
- Threshold voltage (Vth): -1.87V

**Detailed parameter description:**

1. **Channel type:** P—Channel transistor, suitable for circuits with positive load voltage.
2. **Maximum withstand voltage:** -60V, indicating the maximum voltage that the transistor can withstand during operation.
3. **Maximum current:** -0.5A, indicating the maximum current that the transistor can withstand.
4. **Static resistance (RDS(ON)):** 3000mΩ@VGS=10V, VGS=20V, this is the static resistance when the transistor is turned on, affecting power consumption and heat generation.
5. **Threshold voltage (Vth):** -1.87V, indicating the voltage at which the transistor starts to turn on.

**Application introduction:**

This transistor is suitable for circuits with SOT23 package and plays a role in the following fields and modules:

1. **Power switch module:** Due to its P-Channel channel type, it is suitable for use in power switch modules and can achieve efficient power control in circuits with positive voltage loads.

2. **Current control module:** By adjusting the threshold voltage, it can be used in the current control module to ensure operation within the set current range.

3. **LED Driver:** Suitable for LED driver modules to achieve precise driving of LEDs by controlling current and voltage.

4. **Power Inverter:** Due to its P-Channel channel type, it is suitable for some applications that require inverted signals, such as power inverters.

5. **Battery Management System:** In devices that require precise control of battery power, it can be used in battery management systems to extend battery life.

**Example:**

Consider a lighting system that requires precise control of LED brightness. The J285-VB transistor can be used in an LED driver module to achieve precise adjustment of LED brightness by adjusting its threshold voltage. In addition, since it is suitable for circuits with positive load voltages, it can also be used in power switch modules to ensure that the entire lighting system works stably under different loads. Therefore, this transistor plays a key role in LED lighting systems to achieve efficient control of brightness and power.