Power sensors, devices, and vehicle battery systems while maintaining stable performance in mobile applications and industrial control environments. Wide input range of 430V, with 20 to 85 C operating temperature tolerance and reverse polarity protection. Terminals are clearly marked for safe and easy installations. Efficiently convert DC input from 430V to a stable 3.3V output with up to 4 A maximum current using this compact buck converter module. Ideal for automotive electronics and embedded systems. For electronics engineers, developers, and automotive enthusiasts requiring reliable voltage regulation in spaceconstrained projects. Use scenarios In automotive electronics: power a 3.3V microcontroller and peripheral sensors from a vehicle 12V battery, ensuring stable operation across ignition cycles and load changes. In industrial control panels: power 3.3V logic and sensor modules from a 24V DC supply within compact enclosures, maintaining performance in demanding environments. In embedded and IoT devices: convert varying power sources in 430V range to a steady 3.3V for compact, spacelimited electronics and batterypowered systems.