**Application fields and module examples:** 1. **Power management module:** Applicable to power switches, helping to achieve efficient power management and maintain stable power output. 2. **Battery protection module:** Can be used in battery protection circuits to provide reliable protection for overcurrent and overvoltage of the battery. 3. **Current control module:** Used in circuits that require stable current control to ensure that the current is within the set range. 4. **LED lighting control module:** In LED lighting systems, it can be used to adjust and control the current of LEDs to improve the efficiency of the lighting system. The above are some basic parameters and application examples of 2SJ166-T2B-VB.