Hi-Link HLK-PM03 power supply 230V AC-DC source 3.3V/1A, isolated

Product detailed description

The HLK-PM01 is a miniature embedded AC-DC power module designed for direct conversion from 230 V AC to 3.3 V DC. It offers a galvanically isolated output with a maximum current of 1A and is ideal for powering ESP32, ESP8266, Arduino, sensors and other electronics directly from the mains. The module is designed to be built into space-constrained installations where high reliability is required.

Key features:

• Compact size - ideal for built-in installation
• Direct mains power (100-240V AC)
• Stable output 3.3 V DC / 1 A (3 W)
• High Efficiency, Low EMI and Quiescent Consumption
• Fully isolated output - safety separation from the network
• Overvoltage, overload and short circuit protection

Specifications:

• Model: Hi-Link HLK-PM03
• Input voltage: AC 100-240V 50/60Hz
• Output voltage: 3.3 V DC
• Output current: up to 1 A (max. 3 W)
• Ripple voltage: <50mV
• Frequency: 50-150KHZ
• Insulation: >3000 V AC
• Efficiency: typically 70–75%
• Dimensions: approx. 34 × 20 × 15 mm
• Lifespan: >=100000 hours.
• Operating temperature: -20 to +60 °C
• Mounting: THT - through holes on PCB

Package contents:

• 1× AC-DC power supply module Hi-Link HLK-PM01 (3.3V / 1A)

Note:

• This product is not a standalone functional unit and may require professional installation.
• Product images are for illustration purposes only and may sometimes differ from the actual appearance of the item. However, this does not change its basic properties.
• The module works directly with high voltage - take extra care when handling
• Suitable for continuous operation and embedded applications
• It is recommended to add a fuse and varistor at the input for protection