Power adapter/inverter Mean Well MFM-30-12, 30 W, 12 V output, 80–264 V input, RoHS, 35×65.5×23 mm

Mean Well MFM-30-12 is a compact AC-DC single-output power module delivering 12 V DC at up to 2.5 A with a rated power of 30 W. The unit accepts a wide universal input voltage range of 80–264 V AC, is designed for PCB mounting in an open-frame format and measures 35 × 65.5 × 23 mm. It incorporates safety isolation (2×MOPP) appropriate for medical-grade separation and complies with RoHS requirements, making it suitable where space-saving, reliable 12 V power is needed for embedded and industrial electronics.

Advantages

The adapter provides a stable 12 V DC output with up to 2.5 A current capability in a small footprint, enabling integration into dense PCB layouts. Its wide 80–264 V AC input range allows operation from varied mains supplies without additional components. The open-frame PCB-mount design simplifies installation in controlled enclosures, while the 2×MOPP isolation supports applications requiring enhanced patient or system protection. RoHS compliance ensures the module meets common environmental material restrictions.

Suitable for

• Powering small embedded systems and microcontroller boards
• Industrial control modules and automation devices
• LED lighting drivers and signage electronics
• Communication equipment and network devices with 12 V supply
• Medical devices requiring PCB-mounted isolated power sources

Key specifications

• Output voltage: 12 V DC
• Maximum output current: 2.5 A
• Rated power: 30 W
• Input voltage range: 80–264 V AC
• Form factor: open-frame PCB mount
• Dimensions: 35 × 65.5 × 23 mm
• Safety isolation: 2×MOPP (medical isolation)
• RoHS compliant

How to use

Place the module on the target PCB following the manufacturer’s recommended footprint and soldering guidelines. Ensure correct orientation for input and output connections and verify that AC input lines are connected through appropriate protective components such as fuses and transient suppression if required by the system. Provide adequate creepage and clearance in the end product enclosure, and route output lines to downstream circuits with proper filtering or decoupling as needed to meet noise and stability requirements. Test the assembled board at low load first, then gradually increase to the intended operating current while monitoring temperature.

Recommendations

Use the module inside a protective enclosure with proper ventilation and maintain required clearances for safety. For medical or safety-critical applications, follow applicable standards for creepage, clearance, and grounding, and perform final validation under expected environmental and load conditions.