Over 15 years experience of providing support of MEAN WELL Power Supplies
Mean Well SD-15B-12 DC-DC Converter - 15W - 18~36V in 12V out
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Description
Description
Features
- Compliance to EN50155 and EN45545-2 railway standard
- 2:1 wide input range
- Protections: Short circuit / Overload / Over voltage / Over temperature / Input reverse polarity
- 4000VDC I/O isolation
- Cooling by free air convection
- Half encapsulated
- Built-in constant current limiting circuit
- 1U low profile 36mm
- All using 105℃ long life electrolytic capacitors
- LED indicator for power on
- 100% full load burn-in test
- 3 years warranty
Specifications
Specifications
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BrandMean Well
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SeriesSD Series
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Power Rating15 Watt
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Output Voltage12 Volt
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Rated Current1.25 Ampere
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Input Voltage18V~36V
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Standards MetEAC
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Operation ModeConstant Voltage
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Operating Temperature-20°C~85°C
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Warranty3 Year
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Length7.8 cm
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Width5.1 cm
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Height2.8 cm
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Weight0.18 kg
File Downloads
File Downloads
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Payment & Security
Payment methods
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Frequently Asked Questions
Can I use the SD-15B-12 to supply a small 12V automation load from an 18-36 input source?
Yes, this model is built for a wider 18-36 input range and provides a constant 12V output at up to 1.25A. Its 15W rating suits lower-power 12V automation, embedded, or industrial auxiliary loads within that limit.
Is the SD-15B-12 appropriate for a 24V-class control system that needs a small regulated 12V rail?
It can be appropriate when the available source is within the 18-36 input range and the downstream device needs 12V constant voltage. The output is limited to 15W and 1.25A, so it is intended for smaller 12V devices rather than heavier loads.
Can this converter power a compact 12V HMI accessory, relay interface, or control board?
This converter is better suited to low-power 12V accessories or control boards that stay within 1.25A output current. Its compact 78.0 × 51.0 × 28.0 mm size and 0.18 kg weight also help where panel space is limited.
Is the SD-15B-12 suitable for outdoor environments or only indoor enclosures?
The operating temperature range is -20°C to +85°C, which supports a broad temperature window. No IP rating is listed in the provided specifications, so the product data does not confirm outdoor, wet-location, or washdown use.
How does the SD-15B-12 differ from the other SD-15B models?
The SD-15B family includes SD-15B-5 at 15W, 5V, 3A; SD-15B-12 at 15W, 12V, 1.25A; and SD-15B-24 at 15W, 24V, 0.62A. All three share the 18-36 input range, constant voltage mode, -20°C to +85°C operating temperature, 78.0 × 51.0 × 28.0 mm dimensions, 0.18 kg weight, EAC certification, and a 3-year warranty.
Other SD-15B Models
1 other model| Model | Power | Voltage | Current | IP Rating | |
|---|---|---|---|---|---|
| Mean Well SD-15B-5 DC-DC Converter - 15W - 18~36V in 5V out | 15W | 5V | 3A | Indoor | View |
