Hi-Link HLK-PM03 220VAC to 3.3VDC 3W Step-Down Power Supply Module
Price in Sri Lanka

The Hi-Link HLK-PM03 is a compact, high-efficiency AC-DC power supply module designed to convert 100-240V AC mains voltage into a stable 3.3V DC output with a maximum current of 900mA. With a 3W power output, it is an excellent choice for IoT devices, embedded systems, microcontrollers, and smart home applications. This module offers high efficiency, low power consumption, and built-in safety features, making it ideal for applications requiring stable 3.3V power.

Key Features:

• Compact & Lightweight – Small form factor for easy integration into circuit boards
• High Efficiency – Delivers efficient power conversion with minimal heat generation
• Safe & Reliable – Built-in protections against overvoltage, overcurrent, and short circuits
• Low Ripple & Noise – Ensures stable operation of sensitive electronic components
• Global Compatibility – Works with worldwide AC mains voltage (100-240V)
• Isolation – Provides electrical isolation between AC mains and low-voltage circuitry

Specifications:

• Model: HLK-PM03
• Input Voltage: 100-240V AC (50/60Hz)
• Output Voltage: 3.3V DC
• Output Current: 900mA (Max)
• Power Output: 3W
• Efficiency: ≥70%
• Ripple & Noise: ≤50mV
• Protection Features: Overcurrent, Overvoltage, Short Circuit
• Dielectric Strength: ≥3000V AC
• Insulation Resistance: ≥100MΩ
• Operating Temperature: -20°C to +60°C
• Storage Temperature: -40°C to +80°C
• Size: 34mm × 20mm × 15mm
• Mounting Type: PCB Mount

Applications:

• IoT & Smart Home Devices
• Embedded Systems & Microcontrollers (ESP8266, ESP32, Arduino, Raspberry Pi)
• Industrial Automation
• LED Lighting & Displays
• Powering Sensors & Small Electronics