Hi-Link AC-DC Module 5W is a compact AC-DC converter that transforms 110-240V AC mains voltage into stable DC output from 3.3V to 24V. This isolated switching power module delivers 5W rated power with high efficiency and low ripple, making it an ideal embedded power supply for IoT devices, smart home systems, industrial control, and electronic projects. A direct upgrade to the 2W HLK-PM series, the 5W AC-DC power module provides higher output current in a similarly compact form factor. Specifications Input Voltage: 110V - 240V AC (50/60Hz), universal mains compatible Output Options: 3.3V / 5V / 9V / 12V / 15V / 24V DC (6 models available) Rated Power: 5W continuous output power Output Current: Up to 1500mA at 3.3V, 1000mA at 5V, 420mA at 12V Efficiency: ≥ 75% typical under full load conditions Isolation Voltage: ≥ 3000V AC input-to-output galvanic isolation Ripple & Noise: Low output ripple for clean DC power delivery Protection: Built-in overload protection, short-circuit protection, and over-temperature shutdown Operating Temperature: -25°C to +70°C (industrial grade) Dimensions: Compact PCB-mount design for easy integration into circuits and enclosures Applications IoT Devices: Power supply for ESP32, ESP8266, Arduino, and other microcontroller platforms Smart Home: Relay modules, smart switches, sensors, and home automation controllers Industrial Control: PLC power, sensor power, signal conditioning, and 4-20mA loop systems Embedded Systems: On-board AC-DC conversion for custom PCB designs and prototypes LED Lighting: Low-power LED driver circuits and indicator panel backlights Communication Equipment: PoE splitters, RS485 converters, and network device power Instrument Panels: Digital meters, data loggers, and measurement instrument power Medical Devices: Non-patient-contact low-power medical electronic equipment Security Systems: CCTV cameras, access control panels, and alarm system modules DIY Electronics: Hobbyist projects, bench power supplies, and educational electronics kits Package Includes 1 × Hi-Link HLK-5MxxB AC-DC Power Module (selected voltage variant) 1 × Product specification sheet Key Features 5W Higher Power: 2.5× more power than standard 2W modules, supports heavier loads Universal AC Input: Works with 110V-240V AC worldwide, no voltage selector needed 3000V AC Isolation: Safe galvanic isolation between AC input and DC output Compact Form Factor: Small PCB footprint saves board space in tight designs Multiple Voltage Options: 6 output voltages (3.3V to 24V) cover most common DC requirements Built-in Protections: Overload, short-circuit, and over-temperature safeguards High Reliability: Industrial-grade components with long operational lifespan No External Components: Minimal external components needed — AC in, DC out Low Ripple Output: Clean DC power suitable for sensitive analog and digital circuits Drop-in Upgrade: Compatible footprint with HLK-PMxx series for easy 2W→5W upgrades FAQ Q: What is the difference between 2W (HLK-PMxx) and 5W (HLK-5MxxB) modules?A: The 5W version delivers 2.5× more power with higher output current, while maintaining a similar compact size. It is a direct upgrade for applications needing more headroom. Q: Can I use this module at 110V and 240V without any switch?A: Yes, the wide 110-240V AC input range is fully automatic — no voltage selector or jumper is needed. Q: How much current can each voltage variant output?A: 3.3V outputs 1500mA, 5V outputs 1000mA, 9V outputs 560mA, 12V outputs 420mA, 15V outputs 333mA, and 24V outputs 208mA. Q: Does it require a heatsink?A: Under normal 5W load conditions, no heatsink is needed. However, adding thermal relief copper on the PCB improves heat dissipation. Q: Is the output isolated from the AC input?A: Yes, it provides ≥ 3000V AC galvanic isolation between the input and output for safety. Q: Can I connect two modules in series for higher voltage?A: It is not recommended. The outputs are not designed for series connection — use a single module rated for your target voltage instead. Q: What happens during overload or short-circuit?A: The module has built-in protection that limits current and may shut down temporarily. Remove the fault and it will resume operation automatically. Q: Can it run 24/7 continuously?A: Yes, the module is designed for continuous industrial operation within its rated temperature range of -25°C to +70°C. Q: Does it need external capacitors or filter components?A: While it works standalone, adding a small output capacitor (10-100µF) can further reduce output ripple for noise-sensitive applications. Q: Is it CE/FCC certified?A: Hi-Link modules comply with common safety standards. Check the manufacturer's datasheet for the latest certification details specific to your region.
