AC-DC Power Supply Adapter 12V 3A — Reliable 12V DC Power
The AC-DC Power Supply Adapter 12V 3A provides a stable, regulated 12V DC output with a maximum current of 3A (36W). Designed for makers, hobbyists and professionals, this adapter converts 100–240V AC mains to a low-noise, low-ripple DC supply suitable for a wide range of electronics.
Why choose this 12V 3A power adapter?
- Regulated output ensures steady voltage and protects sensitive electronics from voltage fluctuations.
- High efficiency design minimizes heat and power loss for reliable long-term use.
- Multiple built-in safety protections including over-voltage, over-current and short-circuit protection.
- Standard 5.5mm x 2.1mm barrel plug for broad compatibility with consumer and maker devices.
Key Features
- Input Voltage: 100–240V AC, 50/60Hz
- Output Voltage: 12V DC (regulated)
- Maximum Output Current: 3A
- Output Power: 36W (max)
- Connector: 5.5mm x 2.1mm DC barrel plug
- Protections: Overload, short-circuit, over-voltage protection
- High efficiency and low ripple design for stable performance
- Compact, lightweight and portable housing
Technical Specifications
- Model: AC-DC Power Supply Adapter 12V 3A
- Input Range: 100–240V AC
- Frequency: 50/60Hz
- Output: 12V DC, up to 3A
- Maximum Power: 36W
- Connector Type: 5.5mm x 2.1mm barrel
- Protection Features: OVP, OCP, SCP
Applications and Compatibility
This 12V 3A adapter is ideal for a wide range of devices and projects:
- Arduino and other microcontroller boards
- LED strip lighting and lighting controllers
- CCTV security cameras and DVR systems
- Routers, modems and small networking equipment
- Small DC motors, hobby electronics and robotics
- DIY projects in workshops, labs and classrooms
Installation and Safety Tips
- Verify device voltage and current requirements before connecting.
- Ensure the barrel connector polarity matches the device specifications (center positive is common).
- Avoid exposing the adapter to moisture or extreme temperatures.
- Unplug the adapter before servicing connected equipment.
What’s in the Box
- AC-DC Power Supply Adapter 12V 3A with 5.5mm x 2.1mm barrel plug
- User note: Images are for illustration purposes only
Who should buy this adapter?
If you need a dependable, compact 12V DC power source for Arduino projects, LED lighting, CCTV systems or small electronics, this 12V 3A AC-DC adapter is a practical and economical choice. Its regulated output and built-in protections make it suitable for both prototyping and deployment.
Note: Always confirm the required polarity and current draw of your device before connecting a power adapter.
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