MEAN WELL IRM-05-5 5W AC-DC Power Supply Module, 5V 1A, PCB Mount, Black

Powering low-voltage electronics from mains can be a challenge when space is tight and reliability is critical. The MEAN WELL IRM-05-5 solves this by delivering a clean 5V DC output from any 85–264V AC input, all within a compact encapsulated module that mounts directly onto your PCB. Ideal for IoT devices, home automation, and industrial controls, this 5W supply ensures stable operation even in harsh electrical environments.

Who is it for

Engineers and hobbyists building compact electronic devices that require a safe, board-mounted power source. It suits applications like sensors, microcontrollers, smart home hubs, and portable instruments where space and energy efficiency matter.

Main features

• Universal AC input: 85–264V AC, works worldwide without switches.
• Regulated 5V DC output at 1A, with low ripple and noise (80mVp-p max).
• High efficiency up to 78%, reducing heat and energy waste.
• Fully encapsulated plastic case provides insulation and protection against dust and moisture.
• Safety certified to UL/EN/IEC 60950-1 for ITE applications.
• Built-in protections: short circuit, overload, and over voltage.
• Wide operating temperature range: -30°C to +70°C, suitable for demanding environments.
• No-load power consumption below 0.1W, meeting energy-saving requirements.

Specifications

• Output power: 5W
• Output voltage: 5V DC
• Output current: 1A
• Input voltage range: 85–264V AC
• Input frequency: 47–440Hz
• Efficiency (typ.): 78%
• Isolation voltage: 3000V AC
• MTBF: >1,000,000 hours
• Dimensions: 45.7mm (L) x 25.4mm (W) x 21.5mm (H)
• Weight: 30g
• Colour: Black

Tips

For best performance, ensure adequate airflow around the module if operating near maximum load. The through-hole pins allow secure soldering; consider using a heat sink on the PCB copper area if ambient temperatures exceed 50°C. Always verify that your load current does not exceed 1A to avoid triggering the overload protection.