Over 15 years experience of providing support of MEAN WELL Power Supplies
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Mean Well SKMW20G-03 DC-DC Converter - 20W - 18~75V in 3.3V out
Remote ON/OFF control and trimming output (±10%)
3 years warranty
Key Features
- ✓DIP 1"x1" package with industry-standard pinout
- ✓Operating temperature range -40~+85°C
- ✓4:1 ultrawide input range
- ✓No minimum load required
- ✓Comply to BS EN/EN55032 radiated Class A without additional components
- ✓High efficiency up to 89%
- ✓Protection: Short circuit(continuous)/Overload/Over voltage/Input under voltage
- ✓1.5KVDC I/O isolation
- ✓Remote ON/OFF control and trimming output (±10%)
- ✓3 years warranty
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BrandMean Well
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SeriesSKMW Series
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Power Rating20 Watt
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Output Voltage3.3 Volt
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Rated Current4.5 Ampere
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Input Voltage18V~75V
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No of Output1
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Dimming ControlNone
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Standards MetCE
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Operation ModeConstant Voltage
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Operating Temperature-40°C~85°C
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Warranty3 Year
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Length1 in
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Width1 in
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Height0.4 in
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Weight0.04 lb
::specification::
Frequently Asked Questions
Can I use the SKMW20G-03 to power 3.3V embedded processors or industrial communication boards from a higher-voltage source?
Yes, this model provides constant-voltage 3.3V output for loads up to 4.5A. Its input range is 18-75V, with a total power rating of 20W.
Is the SKMW20G-03 suitable for 3.3V automation electronics on a 24V, 48V, or similar bus within the listed range?
It is intended for applications that need 3.3V output from any source within the specified 18-75V input range. The converter can supply up to 4.5A at 3.3V in constant-voltage mode.
Can this model be used for compact industrial or embedded designs where board space matters?
Yes, the module is compact at 25.4 × 25.4 × 10.2 mm and weighs 0.018 kg. That makes it easier to use where a small 20W converter is needed for 3.3V loads.
Is the SKMW20G-03 rated for outdoor temperature swings or only indoor use?
The product is rated for operation from -40°C to +85°C, so the temperature specification is broad. No IP rating is provided in the specs, so the product page does not define weather or ingress protection.
How does the SKMW20G-03 compare with other SKMW20G models?
All SKMW20G siblings in this set are 20W converters. The other output options are 5V at 4A, 12V at 1.67A, and 15V at 1.33A, while this version provides 3.3V at 4.5A.
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Other SKMW20 Models
11 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| SKMW20W8-15 | — | — | — | Indoor | $32.19 | View |
| SKMW20W8-12 | — | — | — | Indoor | $32.19 | View |
| SKMW20W8-05 | — | — | — | Indoor | $32.19 | View |
| SKMW20W8-03 | — | — | — | Indoor | $32.19 | View |
| Mean Well SKMW20G-15 DC-DC Converter - 20W - 18~75V in 15V out | 20W | 15V | 1.33A | Indoor | $34.40 | View |
| Mean Well SKMW20G-12 DC-DC Converter - 20W - 18~75V in 12V out | 20W | 12V | 1.67A | Indoor | $30.19 | View |
| Mean Well SKMW20G-05 DC-DC Converter - 20W - 18~75V in 5V out | 20W | 5V | 4A | Indoor | $34.40 | View |
| Mean Well SKMW20F-15 DC-DC Converter - 20W - 9~36V in 15V out | 20W | 15V | 1.33A | Indoor | $34.40 | View |
| Mean Well SKMW20F-12 DC-DC Converter - 20W - 9~36V in 12V out | 20W | 12V | 1.67A | Indoor | $34.40 | View |
| Mean Well SKMW20F-05 DC-DC Converter - 20W - 9~36V in 5V out | 20W | 5V | 4A | Indoor | $34.40 | View |
| Mean Well SKMW20F-03 DC-DC Converter - 20W - 9~36V in 3.3V out | 20W | 3.3V | 4.5A | Indoor | $34.40 | View |
