J501-VB is a P-Channel field effect transistor of VBsemi brand, using SOT23 package. Parameters include operating voltage -20V, current -4A, on-resistance RDS(ON)=57mΩ (at VGS=4.5V and VGS=12V), threshold voltage Vth=-0.81V. Suitable for SOT23 package.

**Detailed parameter description:**
- Operating voltage: -20V
- Current: -4A
- On-resistance: 57mΩ (at VGS=4.5V and VGS=12V)
- Threshold voltage: -0.81V
- Package: SOT23

**Application introduction:**
J501-VB is suitable for low-voltage, high-efficiency power management and switching circuits. Its performance parameters enable it to play an excellent role in a variety of electronic devices, especially in areas requiring miniaturization and low power consumption.

**Example application areas:**
1. **Portable device power switch:** Due to the low on-resistance and high efficiency of J501-VB, it can be used in the power switch circuit in portable devices to improve system performance.

2. **Battery management module:** In the battery management module of portable electronic devices, it can ensure efficient charging and discharging and extend battery life.

3. **LED driver:** Suitable for driver modules in LED lighting systems to provide efficient and reliable power.

Overall, the characteristics of J501-VB make it have a wide range of application prospects in the field of power management and control of various low-power and miniaturized electronic devices.