AC-DC 12V 1A Switching Power Supply Module | 100-240V

AC-DC 12V 1A Switching Power Supply Module

Convert AC mains voltage to a stable 12V DC output with this compact, bare-board switching power supply module. Ideal for electronics repair, DIY projects, and embedded system builds, this universal-input regulator accepts a wide AC input range of 100–240V and delivers a reliable 12V DC output — making it a versatile solution for workshops and maker benches worldwide.

Key Features

• Universal AC Input: Accepts AC 100–240V — compatible with both North American (110V) and international (220V) mains supplies
• Regulated 12V DC Output: Delivers up to 1A (1000mA) at 220V input; up to 900mA at 110V input
• Compact Bare-Board Design: Lightweight and space-saving at approximately 6.5 × 3.2 × 1.7–2.0 cm — easy to integrate into custom enclosures or repair projects
• High Rated Capacity: Greater than 1000VA for stable, efficient power conversion
• 100% Brand New: Fresh stock, high-quality components throughout
• Switching Topology: Efficient switch-mode design reduces heat and energy waste compared to linear regulators

Specifications

• Input Voltage: AC 100–240V (universal)
• Output Voltage: 12V DC
• Output Current: Up to 1A (at 220V) / up to 900mA (at 110V)
• Rated Capacity: >1000VA
• Dimensions: ~6.5 × 3.2 × 1.7 cm / 6.5 × 3.2 × 2 cm
• Country of Origin: Made in Mainland China

What's in the Box

• 1× AC-DC 12V 1A Switching Power Supply Module (bare board)

Important Notes

• Please allow ±1 cm measurement tolerance due to manual measurement.
• Actual color may vary slightly from product photos due to lighting and monitor display differences.
• Safety Notice: This is a bare-board module intended for use by qualified individuals familiar with mains-voltage electronics. Always observe proper electrical safety practices when working with AC mains. See OSHA Electrical Safety Guidelines for best practices.

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Frequently Asked Questions

Q: What is a switching power supply module and how does it work?

A: A switching power supply (SMPS) module converts AC mains voltage to a regulated DC output using high-frequency switching transistors. This is more efficient than a traditional linear regulator because it minimizes energy lost as heat. This module takes any AC input from 100V to 240V and outputs a stable 12V DC — suitable for a wide range of electronics and repair applications.

Q: Is this module safe to use for DIY electronics projects?

A: This bare-board module is designed for use by individuals with experience in mains-voltage electronics. Because it connects directly to AC mains, it is essential to follow proper electrical safety procedures — including adequate insulation, use of a suitable enclosure, and ensuring no live conductors are exposed during operation. Refer to OSHA's Electrical Safety resources for guidance.

Q: Can I use this module with both 110V and 220V outlets?

A: Yes. This module features a universal AC input range of 100–240V, making it compatible with standard outlets in North America (110–120V) and most international markets (220–240V). Note that maximum output current is 1A at 220V and approximately 900mA at 110V.

Q: What applications is this switching power supply module suitable for?

A: This module is ideal for electronics repair, custom power supply builds, embedded systems, Arduino or Raspberry Pi projects requiring 12V, LED driver circuits, sensor modules, and general prototyping where a compact, mains-to-12V regulated DC source is needed.