HLK-PM03 3.3V AC-DC Power Module

Description

HLK-PM03 — a compact, fully encapsulated AC-DC power supply module that converts 90–240V AC mains voltage directly into a stable 3.3V DC output . Designed by Hi-Link , this module is ideal for powering low-power electronics such as ESP8266, ESP32, sensors, IoT devices, and microcontrollers . With built-in short-circuit, over-current, and over-temperature protection , the HLK-PM03 offers high reliability in a very small footprint. Its PCB-mount design makes it perfect for embedded products, smart home devices, industrial controllers, and DIY electronics projects.