The Hi-Link HLK-20M05 5V 20W Switch Power Supply Module is a compact, PCB-mountable, isolated AC-DC switching power supply designed to provide a stable 5V DC output from 100V to 240V AC input. With a 20W power rating and up to 4A output current, it is suitable for powering embedded electronics, IoT devices, automation systems, smart home products, and other low-voltage electronic circuits.

Its compact enclosed design, high efficiency, low power consumption, and built-in protection features make it a practical solution for converting mains AC power into regulated DC power within space-constrained PCB designs.

The module is designed for natural cooling and offers reliable operation across a broad input voltage range. It also provides overload and short-circuit protection, helping protect connected circuits during abnormal operating conditions.

Key Features

• 20W rated output power
• 5V DC regulated output
• Up to 4A output current
• Wide 100V–240V AC input range
• Isolated AC-DC switching power supply
• Compact and PCB-mountable design
• High efficiency and high power density
• Low ripple and low output noise
• Overload protection
• Short-circuit protection
• Low no-load power consumption
• Natural air cooling
• Designed for smart home and automation applications
• Suitable for embedded and IoT electronics
• Designed to meet applicable UL and CE requirements

Performance & Protection

The HLK-20M05 is designed for reliable power conversion in electronic systems. Its switching power supply architecture provides efficient AC-to-DC conversion while maintaining a compact form factor.

Overload Protection

The module incorporates output overload protection to help safeguard the power supply and connected electronics when the load exceeds its rated capacity.

Short-Circuit Protection

Short-circuit protection helps reduce the risk of damage caused by accidental output short circuits.

Low Power Consumption

The module is designed for low power consumption and low no-load power loss, making it suitable for applications where energy efficiency is important.

Low Ripple and Noise

The regulated 5V output with low ripple and noise makes the module suitable for powering microcontrollers, sensors, communication modules, and other electronic circuits.

Environmental Conditions

• Operating Temperature: -25°C to +60°C
• Storage Temperature: -40°C to +80°C
• Relative Humidity: 5%–95%
• Cooling: Natural air cooling
• Atmospheric Pressure: 80–106 kPa
• Maximum Altitude: 2000 m

Applications

The Hi-Link HLK-20M05 can be used in various electronic and industrial applications, including:

• IoT devices and smart electronics
• Smart home systems
• Industrial automation
• Embedded systems
• Control panels
• Communication equipment
• Instrumentation systems
• Microcontroller-based projects
• Sensor and monitoring devices
• PCB-based electronic products
• Low-voltage control systems
• DIY and electronics development projects

Why Choose HLK-20M05?

The Hi-Link HLK-20M05 combines a 20W power rating, 5V/4A output, wide AC input range, compact PCB-mountable design, and protection features in a single power supply module. It is a practical choice for applications that require reliable conversion from mains AC power to regulated 5V DC within a compact electronic design.