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Mean Well PM-20-3.3 Power Supply 20W 3.3V
Description
Description
Features
- Universal AC input / Full range
- Protections:Short circuit/Over load/Over voltage
- Ultra-miniature size, light weight
- Cooling by free air convection
- Isolation class II
- UL60601-1/IEC60601-1/EN60601-1 medical safety approved
- No load power consumption<0.5W
- 100% full load burn-in test
- Fixed switching frequency at 67KHz
- High reliability
- 3 years warranty
Specifications
Specifications
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BrandMean Well
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SeriesPM Series
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Power Rating14.85 Watt
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Output Voltage3.3 Volt
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Rated Current4.5 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~60°C
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Warranty3 Year
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Length3.7 in
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Width2.2 in
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Height0.89 in
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Weight0.4 lb
File Downloads
File Downloads
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Payment & Security
Payment methods
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Frequently Asked Questions
Can I use the PM-20-3.3 for a 3.3V industrial control board or embedded controller?
Yes, this model is a constant voltage 3.3V supply rated for 4.5A. With 14.85W output power, it fits 3.3V industrial control boards, embedded electronics, and automation logic that need a regulated 3.3V rail within that current range.
Is the PM-20-3.3 suitable for powering multiple 3.3V sensors or interface modules in one system?
It can be used where the combined 3.3V load stays within 4.5A and 14.85W. That makes it a practical option for grouped 3.3V sensors, interface cards, and low-voltage embedded modules that share a common constant voltage source.
Can this 3.3V power supply be used in automation cabinets with wide AC input ranges?
Yes, the input range is 85-264VAC, so it is suited to equipment that may be deployed across different AC supply conditions. Its constant voltage 3.3V output is intended for low-voltage automation and embedded loads rather than variable-output applications.
Is the PM-20-3.3 a good fit for low-voltage digital electronics that need more current than smaller 3.3V models?
Yes, within the PM series it is the highest-current 3.3V option listed at 4.5A. That gives it more headroom than the PM-05-3.3 at 1.25A, PM-10-3.3 at 2.5A, and PM-15-3.3 at 3.5A for 3.3V digital loads.
Can I use the PM-20-3.3 in hot or cold indoor equipment environments?
The specified operating temperature range is -20°C to +60°C. No IP rating is listed in the provided specs, so the product data supports temperature suitability but does not state suitability for outdoor exposure or washdown conditions.
Other PM-20 Models
4 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well PM-20-12 Power Supply 20W 12V | 21.6W | 12V | 1.8A | Indoor | $30.00 | View |
| Mean Well PM-20-15 On Board Switching Power Supply | 21W | 15V | 1.4A | Indoor | $17.43 | View |
| Mean Well PM-20-5 Power Supply 20W 5V | 22W | 5V | 4.4A | Indoor | $23.74 | View |
| Mean Well PM-20-24 Power Supply 20W 24V | 22.08W | 24V | 0.92A | Indoor | $30.00 | View |
