AC-DC Power Module HLK -PM03 230V to 3.3V/3W


Out of stock


  1. Meet UL, CE requirements.
  2. Ultra-thin, ultra-small.
  3. All voltage input (AC: 90 ~ 264V).
  4. Low ripple and low noise.
  5. Output overload and short circuit protection.
  6. High efficiency, high power density.


Out of stock

HLK-PM03 3.3V/3W Switch Power Supply Module is a plastic enclosed PCB mounted isolated switching step-down power supply module. It can supply 3.3V DC from  120V AC – 230V AC and has a power rating of 3 Watt.

This makes it perfect for small projects that need a 3.3 volt supply from mains. There are many advantages to these modules, such as low-temperature rise, low power, high efficiency, high reliability, high-security isolation, etc.

This Power Supply Module voltage source is a switching source, so you do not have to worry about fluctuations in voltage grid. It is considered designing to mount on the PCB and is the ideal solution to power pads that you take.

It is widely used in a smart home, automation and control, communication equipment, instrumentation, and other industries.


  1. The product is designed to meet the requirements of the EMC and Safety Test
  2. Low power consumption, environmental protection, no-load loss <0.1W
Environmental conditions:
  1. Technical indicators: Single bit
  2. Working temperature: – 20-60 +degree
  3. Storage temperature: + 80-40 -degree
  4. Relative humidity: 5-95%
  5. The cooling way: Natural cooling
  6. The atmospheric pressure: 80-106Kpa
  7. The altitude: 2000M or less.

Package Includes:

1 x HLK-PM03 3.3V/3W Switch Power Supply Module.

SKU: MO44 Category:

AC Input Voltage Range

90 ~ 264V

Output DC Voltage


Input Low Voltage Efficiency

Vin=110VAc, Output full-load: 69%

Input High Voltage Efficiency

Vin=220VAc, output full-load: 70%

Load rated output voltage


Short-term maximum output current


The maximum output current for a long time:


Operating Temperature:

-20 to +60°C

Store Temperature

-40 to +80°C

Relative humidity

5 to 95%

Input current surge


Maximum input current


Voltage Regulation

±0.2 %

Load Regulation

±0.5 %

Dimensions in mm (LxWxH)

33 x 19 x 15





Shipment Weight

0.15 kg

Shipment Dimensions

5 × 4 × 2 cm

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