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Hi-Link HLK-PM03 3.3V 3W AC to DC Power Supply Module – 100V–240V AC to 3.3V DC Converter
Hi-Link HLK-PM03 3.3V 3W AC to DC Power Supply Module – 100V–240V AC to 3.3V DC Converter
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The Hi-Link HLK-PM03 Power Supply Module is a compact AC to DC converter module designed to convert 100V–240V AC input into stable 3.3V DC output. It is suitable for low-power electronics circuits, IoT devices, wireless modules, microcontroller boards, smart switches, sensors, relay control circuits and embedded projects.
This module provides 3.3V DC 1A output with 3W power, making it useful for projects that need direct AC mains to 3.3V DC conversion without using a separate adapter. Its enclosed PCB-mount design makes it easy to integrate into control boards, automation circuits and compact electronics products.
Specifications
| Specification | Details |
|---|---|
| Product Name | Hi-Link HLK-PM03 Power Supply Module |
| Brand | Hi-Link |
| Model / Part Number | HLK-PM03 |
| Product Type | AC to DC Power Supply Module |
| Input Voltage | 100V–240V AC |
| Input Current | 0.2A |
| Input Frequency | 50–60Hz |
| Output Voltage | 3.3V DC |
| Output Current | 1A |
| Output Power | 3W |
| Input Pins | AC, AC |
| Output Pins | +Vo, -Vo |
| Module Type | Enclosed PCB Mount Power Module |
| Suitable For | ESP8266, ESP32, sensors, IoT circuits, microcontroller projects, relay boards |
| Application | Smart switch, home automation, embedded electronics, control circuits, DIY electronics |
Key Features
Compact AC to DC power supply module.
Converts 100V–240V AC to 3.3V DC.
Provides 3.3V 1A / 3W output.
Useful for low-power electronics and IoT circuits.
Suitable for ESP8266, ESP32, sensors and embedded projects.
Clearly marked AC input and DC output pins.
Enclosed module design for PCB and project mounting.
Important Note
This module works with mains AC voltage. Wiring should be done carefully with proper insulation and safety protection. Do not touch the module or connected circuit while powered. Use a suitable fuse, enclosure and safe wiring method for final installation.
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