HLK PM01 Hi-link 5V 3W AC to DC Power Supply Module

HLK PM01 Hi-link 5V 3W AC to DC Power Supply Module 

The HLK-PM01 from Hi-Link is a compact AC-to-DC switching power supply module that converts mains AC voltage into a regulated 5 V DC output with up to 3 W of power. It integrates the switching regulator, isolation transformer, and protective circuitry into a small, PCB-mountable module. This makes it an easy and space-efficient solution for powering low-voltage digital electronics and embedded systems directly from mains AC, eliminating the need for bulky external adapters.

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Features

• Wide AC input range — works with standard mains voltages
• Regulated 5 V DC output — ideal for USB-level logic and digital circuits
• Up to 3 W output power — suitable for small embedded and control systems
• Compact PCB mount module — great for space-limited designs
• High efficiency — low heat dissipation
• Low ripple and noise — stable supply for sensitive electronics
• Built-in overload and short-circuit protection
• Isolation between AC input and DC output — improves safety on the low-voltage side
• Easy input/output pins — straightforward integration

Applications

• 5 V microcontroller power supply (Arduino, ESP32 with onboard regulator, etc.)
• USB-powered devices that need an internal 5 V source
• IoT and smart home modules running at 5 V
• Sensor and communication circuits
• Embedded systems and control boards
• Consumer electronics requiring a compact AC-to-DC solution
• PCB designs replacing bulky external adapters