Overview
The Hi-Link HLK-PM01 is an isolated switching power supply module that provides a stable, clean 5V output from your household AC mains. Measuring just a few centimeters, it is the “gold standard” for embedding power in small, intelligent home devices, sensor nodes, and microcontroller-based projects. Because it is isolated, it provides a high level of safety, protecting your sensitive low-voltage electronics (like ESP32/Arduino) from the dangerous high-voltage AC side.
Key Features
Ultra-Compact: Minimalist footprint, perfect for space-constrained PCB designs or tiny junction boxes.
Wide Input: Accepts a global input voltage range from 90V to 264V AC.
Safety First: Includes built-in overload, short-circuit, and over-temperature protection.
Low Noise/Ripple: Delivers a steady 5V signal, ensuring your sensors and microcontrollers run without interference.
No-Load Power: Extremely low power consumption (no-load loss < 0.1W) when the device is in standby.
Technical Specifications
| Feature | Specification |
| Input Voltage | 100V – 240V AC (90V–264V range) |
| Output Voltage | 5V DC ± 0.1V |
| Output Power | 3 Watts |
| Continuous Current | 600 mA (Max) |
| Efficiency | ~70% at 220V AC |
| Isolation Voltage | 2500V AC |
| Dimensions | 34mm x 20mm x 15mm |
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