#Chipbr "QM3403K-VB is a P-Channel field effect transistor of VBsemi brand. The main parameters are as follows: br - Maximum withstand voltage: -30V br - Maximum drain current: -5.6A br - On-state resistance: 47mΩ @ VGS=10V, VGS=20V br - Threshold voltage: -1V br br Package is SOT23. This device is suitable for SOT23 package and is widely used in the following fields and modules: br 1. **Power management module:** Due to its load characteristics and low leakage current, it can be used in power switches and voltage regulator modules. br 2. **Battery protection:** Suitable for mobile devices and battery management systems to ensure battery safety and performance. br 3. **Current control:** Plays a key role in circuits that require P-Channel MOSFET for current control. br 4. **Power inverter:** Used to build efficient and compact power inverters. br br This device can play a role in low-voltage and low-power applications and is a key component in electronic devices.