This precision AC-DC buck converter efficiently steps down 220V AC mains power to a stable 3.3V, 5V, or 12V DC output with a reliable 1A current and 12W power rating. It provides a compact, integrated power supply solution with excellent voltage regulation, making it ideal for powering sensitive electronics directly from a wall outlet. Features and Benefits
- Wide Input Voltage Range (AC 85V-265V) - Ensures stable operation despite fluctuations in mains power, protecting your connected devices.
- Selectable DC Output (3.3V/5V/12V) - Offers versatile power for a wide range of microcontrollers, sensors, and modules from a single unit.
- High Conversion Efficiency & Low Ripple - Delivers clean, stable DC power crucial for the reliable operation of digital circuits and ICs.
- Compact PCB Module Design - Saves space in your project enclosures and simplifies integration into existing systems.
- Built-in Over-Current and Short-Circuit Protection - Safeguards both the converter and your valuable connected components from damage. Applications
- Microcontroller & Development Board Power - Provide a dedicated, clean power source for Arduino, Raspberry Pi, or ESP8266/32 projects.
- LED Strip & Lighting Systems - Drive 5V or 12V addressable or standard LED strips directly from a wall plug.
- Sensor Networks & IoT Devices - Create permanent installations for environmental sensors, smart home modules, or data loggers.
- Small Electronics & Hobbyist Projects - Power breadboard circuits, motor drivers, or small displays for prototypes and finished builds. Note
This is a non-isolated switching power supply module. Ensure proper electrical safety measures during installation and use.
Dimensions: 65 x 45 x 23 mm. Weight: 65 g. Rated Output Power: 12 W. Input Voltage: 85-265 VAC. Output Voltage: 3.3 VDC, 5 VDC, 12 VDC (Selectable). Output Voltage Accuracy: ±2%. Isolation Voltage: 3000 VAC. Storage Temperature: -40°C to +85°C. Cooling Method: Natural Convection. EMC Standards: EN55032, EN55035. Full Load Efficiency: ≥78%. Input Connection: AC Live, AC Neutral, Earth. Input Frequency: 47-63 Hz. Mounting Type: PCB Mount. Operating Temperature: -20°C to +70°C. Output Connection: V+, V-. Output Ripple and Noise: ≤100 mVp-p. Protections: Overload, Overvoltage, Short Circuit. Rated Output Current: 1 A. Safety Standards: UL62368-1, EN62368-1. Terminal Type: Screw Terminal. Power: 3.3V. High-concerned chemical: None. Type: Others. Q: What are the key features of the AC-DC 3.3V/5V/12V Precision Buck Converter AC 220v to 5v DC step down Transformer power supply module 1A 12W? A: The AC-DC 3.3V/5V/12V Precision Buck Converter AC 220v to 5v DC step down Transformer power supply module 1A 12W offers professional-grade performance with premium construction. It's designed for reliability and ease of use in various applications.. Q: What materials is this product made from? A: This product is constructed from high-quality materials designed for durability and long-lasting performance.. Q: Is this product suitable for professional use? A: Yes, this product is designed for both professional and home use. It meets high standards for performance and durability.. Q: Does this product come with a warranty? A: Yes, this product comes with a manufacturer warranty. Please check the product documentation for specific warranty terms and conditions.. Q: What is included in the package? A: The package includes the AC-DC 3.3V/5V/12V Precision Buck Converter AC 220v to 5v DC step down Transformer power supply module 1A 12W along with any standard accessories. Please refer to the product specifications for a complete list of included items..