Skip to main content

HLK-PM01 AC to DC 5V Power module

The HLK-PM01 is a small size low cost AC to DC converter which can take in 110V/220V AC at 50/60 Hz and give 5V 3W output. The module is can be used in designs which run on 5V and needs to be powered form the AC mains.


Pin Description

Pin Number

Pin Name




Connect to the Phase/Live terminal



Connect to the Neutral terminal



Output negative voltage here ground



Outputs +5V regulated voltage




  • Input Voltage: 100-240V AC
  • Input Frequency: 50-60Hz
  • Output Voltage: 5V
  • Output current: 600mA
  • Power: 3W
  • Output peak current: 1000mA
  • Maximum Input current: 0.2A
  • Efficiency:  70%
  • In-built short circuit and over current protection

Note: Complete Technical Details can be found at the HLK-PM01 datasheet given at the end of this page.


Alternative AC to DC power Module

 HLK-5M05 (1A)


Where to use HLKPM01

The HLKPM01 is commonly used in places where a microcontroller circuit has to be powered directly from AC mains. Most digital circuits operate at a voltage of 5V, this module can convert the AC mains to 5V with an efficiency of 70%. The module also meets the UL,CE requirements hence can be used in commercial products and should be free from ripple and noise.

However the module can source only a maximum of 600mA as continuous current, so if you circuit requires anything more than that then consider the HLK-5M05 module which can source upto 1A.


How to use the HLKPM01

The HLKPM-01 module is a circuit by itself. Inside the thick black box there are circuits to convert your AC mains directly to 5V DC. So using it is pretty simple. You just have to connect the AC mains terminals to the AC pin and we will get a 5V regulated voltage at its output terminals.

The module also has built-in short circuit protection and over current protection. But, still you might consider adding some external protection circuits based on your Power regulation and application. Commonly a fuse and a MOV is used on the input side to protect the module from voltage and current spikes.



  • Home Automation products
  • IoT Devices
  • Security systems
  • Power modules



HLK-PM01 Power Module Dimensions

Component Datasheet

Related Post

Join 20K+subscribers

We will never spam you.

* indicates required

Be a part of our ever growing community.