Description
2W/3W/5W/10W/20W HLK-xxM12 Series AC-DC
Hi-Link 12V AC-DC Power Supply Modules are compact, PCB-mount, encapsulated SMPS modules designed for reliable power delivery directly from the mains. These modules convert 100–240V AC to a stable 12V DC output, making them ideal for IoT devices, automation systems, smart home controls, communication equipment and DIY electronics.
Built with high-efficiency switch-mode technology, each Hi-Link module provides excellent performance with low heat, low ripple, high efficiency, and strong electrical isolation. They eliminate bulky transformer-based supplies, making your designs smaller, safer, and more efficient. All variants come with UL/CE compliance, overload protection, short-circuit protection, and long-term durability.
Whether you're building a home automation controller, embedded system, or compact industrial project, Hi-Link’s 12V modules offer global voltage compatibility, easy PCB integration, and dependable 24/7 operation.
Common Features — All 12V Hi-Link Modules (2W, 3W, 5W, 10W, 20W)
-
Wide global AC input range: 90–264V AC
-
Stable 12V DC regulated output
-
High-efficiency switch-mode power supply (SMPS) design
-
Built-in short-circuit, overload & over-voltage protection
-
3000VAC isolation, ensuring safe operation
-
Ultra-compact, PCB-mount encapsulated design
-
Very low ripple & low noise
-
Low power consumption, <0.1W no-load loss
-
Designed for EMC & Safety compliance (UL/CE certified)
-
Long-life, high-reliability components
-
Natural air-cooling, no heatsink required
-
Ideal for IoT devices, automation, smart homes, instrumentation, controllers, sensors
| Specification | HLK-2M12 (2W) | HLK-PM12 (3W) | HLK-5M12 (5W) | HLK-10M12 (10W) | HLK-20M12 (20W) |
|---|---|---|---|---|---|
| Model Number | HLK-2M12 | HLK-PM12 | HLK-5M12 | HLK-10M12 | HLK-20M12 |
| Output Voltage | 12V DC | 12V DC | 12V DC | 12V DC | 12V DC |
| Power Rating | 2W | 3W | 5W | 10W | 20W |
| Input Voltage Range | 100–240V AC | 90–264V AC | 100–240V AC (also supports 120–230V AC) | 100–240V AC | 100–240V AC |
| Max Output Current | ~170mA (approx.) | ~250mA (approx.) | 600mA continuous / 1A peak | ~830mA (approx.) | ~1.67A (approx.) |
| Voltage Regulation | — | — | ±0.2% | — | — |
| Load Regulation | — | — | ±0.5% | — | — |
| Ripple & Noise | Low | Low | Low | Low | Low |
| Isolation Voltage | 3000VAC | 3000VAC | 3000VAC | 3000VAC | 3000VAC |
| Efficiency | High | High | High | High | High |
| Operating Temp. | –20°C to +60°C | –20°C to +60°C | –20°C to +60°C | –20°C to +60°C | –20°C to +60°C |
| Storage Temp. | –40°C to +80°C | –40°C to +80°C | –40°C to +80°C | –40°C to +80°C | –40°C to +80°C |
| Relative Humidity | 5–95% | 5–95% | 5–95% | 5–95% | 5–95% |
| Cooling Method | Natural cooling | Natural cooling | Natural cooling | Natural cooling | Natural cooling |
| Certification | UL/CE | UL/CE | UL/CE | UL/CE | UL/CE |
| Designed For | Smart home, IoT, automation | IoT, sensors, automation | General electronics, control units | Smart home controllers, industrial use | High-power automation devices |
| Package Includes | 1x HLK-2M12 | 1x HLK-PM12 | 1x HLK-5M12 | 1x HLK-10M12 | 1x HLK-20M12 |
| Dimensions | — | — | 33 × 19 × 15 mm | — | — |
| Weight | — | — | 22 g | — | — |
Applications (Common for All Hi-Link 12V Modules)
These Hi-Link 12V AC-DC modules are used across:
Smart Home & IoT
-
Wi-Fi NodeMCU/ESP8266/ESP32 power supply
-
Smart switches & smart lighting systems
-
Voice assistant-based home automation
Industrial & Automation
-
Sensor interfaces
-
PLC control boards
-
Small industrial controllers
-
Relay control circuits
Communication & Networking
-
Routers, network nodes
-
Telecom mini devices
Consumer Electronics
-
Compact chargers
-
LED drivers
-
Low-power 12V gadgets
DIY & Educational Projects
-
Robotics
-
Arduino/Raspberry Pi interface power
-
Prototyping and embedded system projects
Precautions & Safety Instructions
To ensure safe operation of all Hi-Link 12V modules:
Electrical Safety
-
Always handle the module carefully when connected to AC mains (100–240V).
-
Do NOT touch any conductive parts while powered.
-
Enclose the module properly inside an insulated case before deploying in real projects.
-
Add proper fuses, MOV surge protectors, and isolation where required.
Thermal & Environmental
-
Ensure good ventilation around the module during operation.
-
Avoid placing near heat-generating components.
-
Do not exceed operating temperature limits (-20°C to +60°C).
Wiring & Installation
-
Ensure correct AC input polarity and 12V output polarity.
-
Solder securely if using permanently on PCB.
-
Avoid short circuits during installation and testing.
Load & Usage
-
Do not exceed the rated wattage of the selected variant.
-
Maintain at least 20% load headroom for long-term reliability.
-
Use only in indoor, dry environments.