HLK-PM03 230V to 3.3V Step-Down Converter

With this step-down converter, you can transform 230V AC to 3.3V DC. This voltage converter with rectification and voltage regulation is suitable for powering 3.3V microcontrollers with 90 to 264V AC.

Warning:

Working with 230V voltages is dangerous and can lead to fatal accidents. The module must only be used by qualified personnel. We accept no liability for improper use of the device.

Features:

• Compact design
• Wide input voltage range from 90V to 264V AC
• With overload and short circuit protection on the output
• Low standby power consumption of only <0.1W

Interesting Links Operating 3.3V Microcontroller on 230V:

• https://randomnerdtutorials.com/esp8266-hi-link-hlk-pm03/
• https://randomnerdtutorials.com/hack-pir-motion-sensor-esp8266-hlk-pm03/

Technical Details: 

• UL and CE certified
• Voltage Input: 90 to 264V AC
• Voltage Output: 3.3V DC
• Output Current: 900mA
• Power: 3W
• No-load power consumption: <0.1W 
• Overload and short circuit protection on the output
• Operating Temperature: -20°C to +60°C
• Efficiency at 230V: >70%
• Accuracy at 3.3V: +/- 0.1V
• Dimensions: 34 x 20 x 15mm
• Weight: 19g

Scope of Delivery:

• 1x HLK-PM03 230V to 3.3V Step-Down Converter