AC-DC Fully Isolated Switching Power Supply Module, 220V AC Input to Dual Output 12V 1A & 5V 1A Step Down Converter Board with Complete Isolation Protection for Industrial Control & DIY Electronics

This AC-DC fully isolated dual output switching power module converts standard 220V alternating current into two independent direct current power sources: 12V 1A and 5V 1A, which greatly simplifies power distribution for electronic devices requiring multiple voltage rails.

The core advantage lies in the complete electrical isolation between the high-voltage AC input side and low-voltage DC output side. It effectively blocks leakage current, eliminates ground loop interference and enhances overall operational safety, making it suitable for sensitive circuits, microcontroller boards, sensor systems and household small appliances.

Adopting mature switching power supply solution, the module features high conversion efficiency, low idle power consumption and low operating temperature compared with linear power supplies. It integrates comprehensive safeguard mechanisms including short-circuit protection, overload protection and overvoltage protection. Once abnormal load occurs, the module will automatically cut off output to protect both the power board and the rear-end load equipment.

With a small-sized printed circuit board structure, it is convenient for fixed installation inside instrument shells, DIY automation kits, LED control systems, single-chip peripheral power supply and prototype development equipment. No complex debugging is needed, just connect the 220V mains input and load terminals directly for stable and reliable long-term power supply.