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Mean Well MPS-45-3.3 Power Supply 45W 3.3V 8A
The MPS-45-3.3 is a 26.4W Mean Well open-frame power supply (input: 90~264VAC, operating temperature: -10~+60°C).
Key Features
- ✓ Input voltage: 90~264VAC
- ✓ Output voltage (max): 3.3V
- ✓ Rated output current: 8A
- ✓ Operating temperature: -10~+60°C
- ✓ Safety certifications: CB, CE, TÜV, UL
- ✓ 3 year warranty
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BrandMean Well
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SeriesMPS Series
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Power Rating26.4 Watt
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Output Voltage3.3 Volt
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Rated Current8 Ampere
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Input Voltage90V~264V
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No of Output1
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Dimming ControlNone
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Standards MetCB,CE,TUV,UL
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Operation ModeConstant Voltage
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Operating Temperature-10°C~60°C
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Warranty3 Year
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Length5 in
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Width2.99 in
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Height1.1 in
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Weight0.4 lb
::specification::
Frequently Asked Questions
Can I use the MPS-45-3.3 for a 3.3V embedded controller or single-board computer?
Yes, if the equipment requires a constant 3.3V DC supply and stays within 8A and 26.4W. That makes it suitable for embedded controllers, logic boards, or industrial computing hardware designed for 3.3V input. The wide 90-264VAC input also fits sites with different AC mains standards.
Is this power supply appropriate for 3.3V industrial I/O or automation electronics?
It can be a fit for 3.3V automation electronics that need regulated constant-voltage output up to 8A. Typical use cases include low-voltage control boards, interface electronics, and monitoring modules that run on 3.3V DC. The key selection limits are the 3.3V output and 26.4W maximum power.
Can the MPS-45-3.3 power multiple 3.3V digital boards in one system?
It can support multiple 3.3V boards as long as the combined load does not exceed 8A or 26.4W. This is often relevant in compact industrial or embedded systems where several logic devices share one low-voltage rail. It is a constant-voltage model, so it should only be used with loads designed for 3.3V DC.
Is the MPS-45-3.3 suitable for outdoor or harsh-environment use?
The listed specs show an operating range of -10°C to +60°C, but no IP rating is provided. That means the temperature range is defined, while dust and water protection are not. It is better suited to protected indoor enclosures or equipment housings unless the final assembly provides the required environmental protection.
How does the MPS-45-3.3 compare with other 3.3V models in the MPS series?
Within the 3.3V MPS family, the MPS-45-3.3 is rated at 26.4W and 8A, the MPS-65-3.3 is 39.6W and 12A, the MPS-120-3.3 is 79.2W and 24A, and the MPS-200-3.3 is 132W and 40A. All are constant-voltage 3.3V models, so the main differences are available current and total power. This version is the lower-power option in that 3.3V group.
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Other MPS-45 Models
8 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well MPS-45-24 Power Supply 45W 24V 1.9A | 45.6W | 24V | 1.9A | Indoor | $32.92 | View |
| Mean Well MPS-45-7.5 Power Supply 45W 7.5V 5.4A | 40.5W | 7.5V | 5.4A | Indoor | $40.48 | View |
| Mean Well MPS-45-5 Power Supply 45W 5V 8A | 40W | 5V | 8A | Indoor | $40.48 | View |
| Mean Well MPS-45-48 Power Supply 45W 48V 1A | 48W | 48V | 1A | Indoor | $40.48 | View |
| Mean Well MPS-45-27 Power Supply 45W 27V 1.7A | 45.9W | 27V | 1.7A | Indoor | $40.03 | View |
| Mean Well MPS-45-15 Power Supply 45W 15V 3A | 45W | 15V | 3A | Indoor | $40.48 | View |
| Mean Well MPS-45-13.5 Power Supply 45W 13.5V 3.3A | 44.55W | 13.5V | 3.3A | Indoor | $40.48 | View |
| Mean Well MPS-45-12 Power Supply 45W 12V 3.7A | 44.4W | 12V | 3.7A | Indoor | $40.48 | View |
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