AC/DC Buck Power Supply Module 10W/12W 85-265V to 5V/12V/24V
AC/DC Buck Power Supply Module 10W/12W 85-265V to 5V/12V/24V
AC/DC Buck Switching Power Supply Module — Versatile Step-Down Isolated Converter
This compact yet powerful AC/DC Buck Switching Power Supply Board is an essential component for electronics hobbyists, engineers, and makers. Designed to convert wide-range AC or DC input voltage down to stable, regulated DC output, it's ideal for embedded systems, LED drivers, industrial control boards, IoT devices, and DIY automation projects. Its isolated design ensures safe and clean power delivery across all supported output voltages.
Key Features
- Wide Input Range: Accepts AC 85V–265V or DC 120V–374V, making it compatible with power grids worldwide
- Multiple Output Options: Choose from DC 5V (2A / 10W), DC 12V (1A / 12W), or DC 24V (0.5A / 12W) to suit your project needs
- Isolated Step-Down Design: Galvanic isolation between input and output for improved safety and noise reduction
- Low Standby Power: Standby power consumption ≤150mW at 230VAC — energy-efficient operation
- Broad Frequency Compatibility: Operates across 47Hz–63Hz frequency range for global use
- Compact PCB Module: Space-saving form factor makes integration into enclosures and panels straightforward
- Switching Topology: Buck switching design for high efficiency and minimal heat generation under typical loads
Technical Specifications
| Parameter | Value |
|---|---|
| Input Voltage | AC 85V–265V / DC 120V–374V |
| Frequency Range | 47Hz–63Hz |
| Output Voltage | DC 5V / DC 12V / DC 24V |
| Rated Current | 2A (5V) / 1A (12V) / 0.5A (24V) |
| Rated Power | 10W (DC 5V) / 12W (DC 12V & DC 24V) |
| Standby Power | ≤150mW @ 230VAC |
| Rated Capacity | <40VA |
| Origin | Made in China |
What's in the Box
- 1× AC/DC Buck Switching Power Supply Module
Important Notes
- Colors may vary slightly due to monitor calibration and lighting conditions.
- Please allow 1mm–10mm dimensional tolerance due to manual measurement.
- Always ensure proper enclosure and electrical insulation when integrating into a live circuit. Follow all applicable electrical safety standards.
Safety & Electrical Standards
When working with mains-connected power supply modules, always follow proper electrical safety practices. For guidance on electrical safety and standards, refer to the OSHA Electrical Safety Guidelines.
Frequently Asked Questions
Q: What output voltage options are available for this buck power supply module?
A: This switching power supply module is available in three output voltage variants: DC 5V (rated at 2A / 10W), DC 12V (rated at 1A / 12W), and DC 24V (rated at 0.5A / 12W). Please select the version that matches your project's requirements before purchasing.
Q: Can this AC/DC converter be used with international power grids?
A: Yes. The module accepts a wide AC input range of 85V–265V and a frequency range of 47Hz–63Hz, making it compatible with most global power standards including North American (110–120V) and European (220–240V) mains supplies.
Q: Is this power supply module isolated, and why does that matter?
A: Yes, this is an isolated step-down power supply module. Isolation means there is a galvanic (electrical) barrier between the high-voltage AC input side and the low-voltage DC output side. This improves safety by preventing direct electrical contact and reduces noise interference, which is especially important in sensitive electronics and microcontroller-based projects.
Q: What applications is this power supply module best suited for?
A: This module is well-suited for a wide variety of applications including LED strip drivers, microcontroller power supplies (Arduino, ESP32, Raspberry Pi accessories), industrial automation circuits, home automation (smart relay boards), sensor modules, and other DIY electronics projects requiring regulated low-voltage DC from mains AC power.