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Mean Well PM-05-3.3 Power Supply 5W 3.3V 1.25A
The PM-05 is a 5W Mean Well power converter (input range: 85~264VAC).
Key Features
- ✓ Input voltage range: 85~264VAC
- ✓ 4KVAC reinforced I/O isolation
- ✓ Protections: Overload / Over voltage
- ✓ Safety approvals: SAFETY & EMC (Note 4) ISOLATION LEVEL
- ✓ 3 years warranty
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BrandMean Well
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SeriesPM Series
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Power Rating4.12 Watt
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Output Voltage3.3 Volt
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Rated Current1.25 Ampere
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Input Voltage85V~264V
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No of Output1
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Dimming ControlNone
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Standards MetCB,CE,EAC,TUV,UL
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Operation ModeConstant Voltage
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Operating Temperature-20°C~70°C
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Warranty3 Year
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Length2.47 in
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Width1.97 in
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Height0.78 in
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Weight0.17 lb
::specification::
Frequently Asked Questions
Can I use the PM-05-3.3 to power a 3.3V microcontroller or embedded board from AC mains?
Yes, this model is sized for low-power 3.3V embedded electronics that need a constant-voltage DC output from 85-264VAC input. It delivers 3.3V at up to 1.25A, with 4.125W total output available.
Is the PM-05-3.3 a good choice for 3.3V industrial communication or logic circuits?
It can be a fit for 3.3V logic and communication circuits when the total draw stays within 1.25A and 4.125W. Its constant-voltage 3.3V output makes it more appropriate for control electronics than for loads requiring a higher-voltage rail.
Can this power supply run a small 3.3V IoT or monitoring device inside equipment?
Yes, for compact 3.3V monitoring or IoT hardware that remains inside the 4.125W limit. The 62.85 × 50.0 × 19.7 mm size supports use in small enclosures where a mains-powered 3.3V rail is needed.
Would the PM-05-3.3 work for low-voltage control electronics in an automation product?
It is appropriate for low-voltage control sections that are designed around a 3.3V constant-voltage rail. The key limit is output capacity: the connected electronics must stay at or below 1.25A and 4.125W.
How does the PM-05-3.3 compare with the higher-power 3.3V PM models?
The 3.3V PM options listed are PM-05-3.3 at 4.125W and 1.25A, PM-10-3.3 at 8.25W and 2.5A, PM-15-3.3 at 11.5W and 3.5A, and PM-20-3.3 at 14.85W and 4.5A. All share the same 3.3V constant-voltage output, with the main difference being available current and total wattage.
Can the PM-05-3.3 be used in outdoor equipment or cold and hot environments?
The published operating temperature range is -20°C to +70°C, so its thermal range is defined. However, no IP rating is listed, so weather exposure or outdoor washdown use should not be assumed from the provided specs.
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Other PM-05 Models
4 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well PM-05-5 Power Supply 5W 5V 1A | 5W | 5V | 1A | Indoor | $18.40 | View |
| Mean Well PM-05-24 Power Supply 5W 24V 230mA | 5.52W | 24V | 0.23A | Indoor | $18.40 | View |
| Mean Well PM-05-15 Power Supply 5W 15V 330mA | 4.95W | 15V | 0.33A | Indoor | $18.40 | View |
| Mean Well PM-05-12 Power Supply 5W 12V 420mA | 5.04W | 12V | 0.42A | Indoor | $18.40 | View |
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