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Mean Well SD-350B-12 DC-DC Converter - 330W - 19~36V in 12V out 27.5A
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Mean Well SD-350B-12 DC-DC Converter - 330W - 19~36V in 12V out 27.5A
The SD-350B is a 330W Mean Well DC-DC converter (input: 19~36VDC, operating temperature: -20~+60°C).
Key Features
- ✓ Input voltage: 19~36VDC
- ✓ Output voltage (max): 12V
- ✓ Rated output current: 27.5A
- ✓ I/O isolation: 1500V
- ✓ Operating temperature: -20~+60°C
- ✓ Safety certifications: CB, CE, EAC
- ✓ 3 year warranty
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BrandMean Well
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SeriesSD Series
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Power Rating330 Watt
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Output Voltage12 Volt
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Rated Current27.5 Ampere
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Input Voltage19V~36V
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No of Output1
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Dimming ControlNon Dimmable
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Standards MetCB,CE,EAC
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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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Length8.46 in
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Width4.53 in
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Height1.97 in
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Weight2.43 lb
::specification::
Frequently Asked Questions
Can I use the SD-350B-12 to run a 12V industrial control panel from a 19-36V source?
Yes, this model is a constant-voltage DC-DC converter with a 12V output and a 19-36V input range. Its 330W rating and 27.5A output make it suitable for 12V control loads in mobile, industrial, or automation systems that need a regulated 12V rail.
Is the SD-350B-12 a fit for 12V embedded computers or edge devices in a vehicle or battery-backed system?
It can be a fit when the upstream source is within 19-36V and the load requires a steady 12V supply. With up to 27.5A available and 1.5~2KVAC isolation by models, it suits higher-current 12V embedded or industrial electronics better than lower-power converters in the same family.
Can I use this converter for 12V automation accessories such as relays, sensors, and controller modules?
Yes, if the system needs a constant 12V output from a 19-36V input bus, this model matches that requirement. The 330W capacity gives headroom for multiple 12V automation loads as long as the combined demand stays within 27.5A.
Is the SD-350B-12 suitable for outdoor or harsh-environment use?
The provided specs list an operating temperature range of -20°C to +60°C, but no IP rating is given. That means temperature capability is defined, while indoor or outdoor enclosure suitability is not established from the listed data alone.
How does the SD-350B-12 compare with the other SD-350B output versions?
Within the SD-350B group, the 5V model is 285W at 5V and 57A, this 12V model is 330W at 12V and 27.5A, the 24V model is 350.4W at 24V and 14.6A, and the 48V model is 350.4W at 48V and 7.3A. All are constant-voltage converters in the same series, but the output voltage, wattage, and available current differ by model.
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Other SD-350B Models
3 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well SD-350B-5 DC-DC Converter - 280W - 19~36V in 5V out 57A | 285W | 5V | 57A | Indoor | $102.43 | View |
| Mean Well SD-350B-48 DC-DC Converter - 350W - 19~36V in 48V out 7.3A | 350.4W | 48V | 7.3A | Indoor | $102.43 | View |
| Mean Well SD-350B-24 DC-DC Converter - 350W - 19~36V in 24V out 14.6A | 350.4W | 24V | 14.6A | Indoor | $91.47 | View |
Customer reviews
Reviewed by 1 customer across the SD series
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Not shipped.
Model: SD-50C-12Quantity: 1I was notified it was shipped the next day of ordering. Tracking shows no progress beyond label being created. I expected reasonable shipping time coming from Massachussetts. Maybe the seller neglects to give that information that it may be shipped from China. Don't be mislead!
Response from Power Supply Mall|2026-08-14Thank you for your feedback. Your order of 1 unit of the SD-50C-12 placed on August 3rd shipped via FedEx, tracking 383002421062, and was delivered to your location on August 13th. The delivery took 8 business days, which is longer than our typical timeframe. This model is less commonly stocked, so we had to arrange it from another warehouse. Most of our power supplies ship from our main location, but this particular model required sourcing from an alternate facility.
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