Power adapter Mean Well MPM-45-5, indoor 45 W, input 80–264 V, black, 52×87×29.5 mm

Mean Well MPM-45-5 is an indoor 45 W AC/DC power adapter designed for compact, universal DC power supply applications. The unit accepts a wide input voltage range of 80–264 V AC and is housed in a black enclosure measuring 52 × 87 × 29.5 mm. Engineered for high efficiency and low standby consumption, this adapter is intended for powering electronic devices and small equipment where a reliable, medically informed design and RoHS compliance are required.

Advantages

The adapter delivers up to 45 W from a compact, high-density PCB-mount format with a maximum efficiency of up to 92.5% and low no-load power consumption below 0.1 W. It provides double insulation construction (Class II, no FG), outstanding thermal dissipation and 4 kVAC isolation between primary and secondary for improved safety. The design meets medical-grade requirements with 2 x MOPP insulation and ultra-low leakage current, and it includes high EMC performance and anti-vibration capability suitable for indoor installations.

Suitable for

• Powering small electronic devices and modules that require a stable 5 V DC supply
• Embedded and PCB-mounted applications in confined enclosures
• Medical devices and diagnostic instruments requiring 2 x MOPP isolation and low leakage
• Equipment operating from a wide AC mains range (80–264 V AC)

Key specifications

• Output power: 45 W
• Input voltage range: 80–264 V AC
• Dimensions: 52 × 87 × 29.5 mm (compact enclosure)
• Maximum efficiency: up to 92.5%
• No-load power consumption: < 0.1 W
• Insulation: double insulation (Class II), 4 kVAC isolation
• Medical safety: 2 × MOPP isolation level and ultra-low leakage current
• EMC: high electromagnetic compatibility performance
• Mechanical: anti-vibration rating 2–5 G depending on model

How to use

Install the MPM-45-5 in an appropriate indoor enclosure or onto the target PCB following the manufacturer’s mounting and clearance guidelines. Connect the AC input within the specified 80–264 V range and observe correct polarity on the DC output. Allow adequate airflow around the unit for thermal dissipation and avoid mounting near heat sources. Follow applicable safety standards for grounding and isolation when integrating into medical or sensitive equipment.

Recommendations

Use the adapter within its rated ambient temperature and load conditions, verify compatibility with the load’s inrush current, and perform EMC and leakage checks when used in medical environments. Regularly inspect connectors and mounting to maintain reliable performance.