Over 15 years experience of providing support of MEAN WELL Power Supplies
Mean Well SD-100D-12 DC-DC Converter - 100W - 72~144V 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 / 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 Rating102 Watt
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Output Voltage12 Volt
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Rated Current8.5 Ampere
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Input Voltage72V~144V
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Standards MetEAC
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Operation ModeConstant Voltage
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Operating Temperature-15°C~60°C
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Warranty3 Year
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Length19.9 cm
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Width9.8 cm
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Height3.8 cm
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Weight0.65 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-100D-12 to power a 12V PLC or HMI from a 72-144V DC source?
Yes. This converter accepts 72-144V input and delivers regulated 12V constant-voltage output. Its 102W, 8.5A rating suits many 12V PLC, HMI, and panel-control loads on high-voltage DC systems.
Is the SD-100D-12 appropriate for 12V communication or monitoring equipment in industrial cabinets?
It is intended for 12V electronics that need stable constant-voltage power from a 72-144V source. The 8.5A output current and 102W capacity make it suitable for moderate-power communication, monitoring, and control devices. The 2:1 input range helps when the upstream DC bus varies within that 72-144V window.
Can this model support 12V embedded or automation devices on a 96V or 110V DC bus?
It is designed for high-voltage DC inputs within 72-144V, so it fits systems built around that bus range. On the output side, it provides 12V at up to 8.5A with a total power limit of 102W. That makes it a practical match for 12V embedded controllers and automation electronics that stay within those limits.
Is the SD-100D-12 meant for indoor or outdoor use?
No IP rating is listed, so this model is better treated as a protected indoor chassis-mount converter rather than an exposed outdoor unit. Its operating temperature range is -15°C to +60°C. For outdoor cabinets, additional environmental protection would normally be required.
What is the main difference between the SD-100D-12 and the other SD-100D versions?
The SD-100D family shares the same high-voltage input class, but the outputs differ. SD-100D-12 is 102W at 12V and 8.5A, SD-100D-24 is 100.8W at 24V and 4.2A, and SD-100D-5 is 100W at 5V and 18A. That means the choice within this group is mainly output voltage and available current at roughly the same 100W class.
