20W 5V 5A SMPS Power Supply Module Universal AC Input

20W 5V 5A SMPS Power Supply Module – Universal AC Input

(AC to DC Switching Power Supply Module)

The 20W 5V 5A SMPS Power Supply Module is a compact, high-efficiency switching power supply designed to convert AC mains voltage (100–240V AC) into a stable 5V DC output with up to 5 Amps current. It is widely used in electronics projects, LED systems, CCTV cameras, Arduino projects, industrial automation, and embedded systems.

This module features a metal perforated enclosure for heat dissipation and protection, making it suitable for continuous operation.

🔹 Product Overview

• Converts AC 100–240V to DC 5V

• Maximum output current: 5A

• Maximum power: 20W

• Enclosed in a durable metal casing

• Screw terminal input/output connections

• Built-in protection circuits

It provides stable and regulated DC output suitable for sensitive electronic devices.

🔧 Key Features

• ✅ Universal AC Input: 100–240V AC

• ✅ Output: 5V DC, 5A

• ✅ Maximum Power: 20 Watts

• ✅ High Efficiency Switching Design

• ✅ Built-in Overload Protection

• ✅ Short Circuit Protection

• ✅ Over Voltage Protection

• ✅ Compact & Lightweight

• ✅ Metal Case with Ventilation Holes

• ✅ Screw Terminal Block for Easy Wiring

⚙️ Technical Specifications

🔌 Terminal Configuration

The module usually has 4 or 5 terminals:

• L – Live (AC Input)

• N – Neutral (AC Input)

• V- – DC Output Negative

• V+ – DC Output Positive

• (Some versions include adjustable voltage trim)

💡 How It Works

The SMPS (Switch Mode Power Supply):

1. Rectifies AC input into DC.

2. Uses high-frequency switching to regulate voltage.

3. Steps down voltage through a transformer.

4. Filters output to produce stable 5V DC.

Compared to linear power supplies, SMPS:

• Produces less heat

• Is more efficient

• Is compact and lightweight

🛠 Applications

• LED Strip Lighting

• Arduino & Raspberry Pi Projects

• CCTV Cameras

• 3D Printers

• Robotics Systems

• Industrial Control Systems

• Access Control Systems

• Communication Equipment

• DIY Electronics Projects

🛡 Protection Features

• Over Voltage Protection

• Over Current Protection

• Short Circuit Protection

• Thermal Protection

• Automatic Recovery

📐 Physical Characteristics

• Silver metal perforated enclosure

• Compact rectangular design

• Ventilation holes for cooling

• Internal PCB with transformer & capacitors

• Mounting holes for installation

⚠ Safety Notes

• Always connect AC input carefully (L & N).

• Do not touch terminals while powered.

• Ensure proper insulation.

• Install inside an enclosure for safety in permanent setups.

• Keep away from moisture.

📦 Package Includes

• 1 × 20W 5V 5A SMPS Power Supply Module