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Mean Well NFM-20-3.3 Power Supply 20W 3.3V
AC-DC Single output Medical Open frame power supply; Output 3.3Vdc at 4.4A; NFM-20-3.3 is succeeded by MFM-20-3.3
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BrandMean Well
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SeriesNFM 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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Length3.5 in
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Width2.01 in
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Height0.76 in
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Weight0.2 lb
::specification::
Frequently Asked Questions
Can I use the NFM-20-3.3 for a 3.3V embedded controller in industrial equipment?
Yes, it is a constant-voltage 3.3V model intended for loads that need a regulated 3.3V supply. It can support up to 4.5A and 14.85W, so it fits embedded control boards that stay within those limits.
Is the NFM-20-3.3 suitable for 3.3V sensor or communication boards inside an automation panel?
It can be a fit when the electronics require 3.3V constant voltage and the combined load does not exceed 4.5A or 14.85W. That makes it more appropriate for low-voltage control electronics than for higher-voltage field devices.
Can this 3.3V power supply run a small group of 3.3V logic modules or SBC-type boards?
Yes, if the total demand stays within 3.3V, 4.5A, and 14.85W. The wide 85-264VAC input also helps when the equipment needs the same supply across different AC mains conditions.
Is the NFM-20-3.3 a good choice for low-voltage industrial IT hardware that uses 3.3V rails?
It is intended for constant-voltage 3.3V loads and provides up to 4.5A. For compact low-voltage boards or control electronics that stay under 14.85W, the electrical range matches that kind of use well.
How does the NFM-20-3.3 compare with the other NFM series output options?
Within the 3.3V versions, the series steps from NFM-05-3.3 at 4.125W and 1.25A to NFM-10-3.3 at 8.25W and 2.5A, NFM-15-3.3 at 11.5W and 3.5A, and this NFM-20-3.3 at 14.85W and 4.5A. Other NFM outputs include 5V models from 5W and 1A up to 22W and 4.4A, 12V models from 5.04W and 0.42A up to 21.6W and 1.8A, 15V models from 4.95W and 0.33A up to 15W and 1A plus NFM-20-15 listed at 14.85W, and 24V models from 5.52W and 0.23A up to 22.08W and 0.92A.
Can the NFM-20-3.3 be used in outdoor or temperature-variable equipment?
Its operating temperature range is -20°C to +60°C, so it is rated for a fairly broad controlled-temperature range. No IP rating is listed in the provided specs, so outdoor or exposed use should not be assumed from this data alone.
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Other NFM-20 Models
3 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well NFM-20-5 Power Supply 20W 5V | 22W | 5V | 4.4A | Indoor | $26.25 | View |
| Mean Well NFM-20-24 Power Supply 20W 24V | 22.08W | 24V | 0.92A | Indoor | $26.25 | View |
| Mean Well NFM-20-12 Power Supply 20W 12V | 21.6W | 12V | 1.8A | Indoor | $26.25 | View |
