Power Supply MEAN WELL SD-100A-12

The MEAN WELL SD-100A-12 is an enclosed DC-DC converter and 100W power adapter that provides a stable 12V DC output at up to 8.5A from a 9.5–18V DC input. The compact unit (98 mm × 199 mm × 38 mm) is RoHS compliant and intended for applications that require reliable voltage conversion and continuous power delivery.

Advantages

This MEAN WELL adapter offers a compact form factor with a rated 100W output and built-in DC-DC conversion for efficient voltage regulation. The unit delivers a steady 12V output at up to 8.5A from a wide 9.5–18V input range, supporting stable operation of connected equipment. RoHS compliance ensures reduced hazardous substances in manufacturing, and the enclosed design provides protection for internal components.

Suitable for

• Industrial control systems and automation equipment
• Telecommunications and network devices
• Embedded systems, single-board computers and peripherals
• Battery-powered systems requiring DC-DC step-up or regulation

Key specifications

• Manufacturer: mean well
• Model (MPN): SD-100A-12
• EAN: 4021087041744
• Input voltage: 9.5–18 V DC
• Output voltage: 12 V DC
• Output current: 8.5 A (maximum)
• Output power: 100 W
• Form factor: enclosed DC-DC converter
• Dimensions (W×D×H): 98 mm × 199 mm × 38 mm
• Compliance: RoHS

How to use

Install the SD-100A-12 following the manufacturer’s mounting and ventilation guidelines to ensure adequate cooling. Connect a suitable 9.5–18V DC input source to the input terminals, and attach the load to the 12V output terminals, observing correct polarity. Verify that the connected load does not exceed the 8.5A maximum output current. After connections are secure, power the input source and monitor the output voltage for correct regulation before putting the device into continuous operation.

Recommendations

For reliable long-term operation, provide adequate airflow around the adapter, avoid exposure to excessive ambient temperatures, and use appropriate fusing on the input side to protect against overcurrent. Ensure wiring and connectors are rated for the expected current and check compatibility with the end equipment before installation.