Hilink Hlk-Pm09 AC DC 220V to 9V 3W Step Down Isolated Switching Power Supply Module Intelligent Household AC DC Converter

The Hi-Link HLK-PM09 is a compact and reliable AC-to-DC isolated switching power supply module designed to convert 85–265V AC mains voltage into a stable 9V DC output. With a rated output power of 3W and up to 330mA output current, it is an ideal solution for powering microcontrollers, sensors, relay boards, IoT devices, smart-home systems, and other low-power electronic circuits.

Its compact PCB-mount design saves valuable space while providing electrical isolation between the AC input and DC output. The module also features built-in short-circuit and over-current protection, making it suitable for embedded applications and continuous operation.

The HLK-PM09 is an excellent choice when you need a small, efficient, and isolated 220V AC to 9V DC power supply without designing a complete AC-DC converter circuit yourself.

Specification Details
Model HLK-PM09
Input Voltage 85–265V AC
Input Frequency 47–63Hz
Output Voltage 9V DC
Output Current 330mA
Rated Power 3W
Isolation Voltage 3000VAC
Efficiency Approx. 73%
No-Load Power Consumption <0.1W
Ripple & Noise ≤120mVp-p
Protection Short Circuit / Over Current
Protection Recovery Automatic
Mounting Type PCB Through-Hole

1 × Hi-Link HLK-PM09 AC-DC 9V 3W Power Supply Module
1 × Product/Module only
No additional wires, connectors, or enclosure included unless specified by the seller.