MEAN WELL SD-15C-12 DC-DC Converter, 15W, 12V 1.25A, 19-36V Input, Chassis Mount

In industrial and embedded systems, a stable 12V rail often needs to be derived from a 24V battery or DC bus. The MEAN WELL SD-15C-12 DC-DC converter solves this by providing a regulated 12V output from a 19–36V input, delivering up to 15W with high efficiency and robust protection.

Who is it for

Engineers and integrators working on automation, instrumentation, and control systems will appreciate this module's compact chassis-mount design and screw terminal connections. It is ideal for applications where a reliable 12V supply must be generated from a 24V source, such as in vehicles, industrial machinery, or backup power systems.

Main features

• Wide 19–36V DC input range, suitable for 24V nominal systems
• Regulated 12V DC output with 1.25A current capability
• 15W total output power with 80% typical efficiency
• 1500V DC isolation between input and output
• Built-in protections: short circuit, overload, over voltage, and input reverse polarity
• Free air convection cooling, no fan required
• Chassis mount with screw terminals for secure wiring
• Compliant with UL60950-1, TUV EN60950-1, and CE

Specifications

• Input voltage range: 19–36 VDC
• Output voltage: 12 VDC
• Output current: 1.25 A
• Output power: 15 W
• Efficiency: 80%
• Isolation voltage: 1500 VDC
• Ripple & noise: 120mVp-p (max)
• Line regulation: ±0.5%
• Load regulation: ±1.0%
• Input voltage tolerance: ±1%
• Setup, rise time: 500ms, 50ms at full load
• Hold up time: 10ms at full load
• Operating temperature: -20 to +60 °C
• MTBF: >300,000 hours

Tips

Ensure adequate ventilation around the module to maintain performance within the specified temperature range. For best results, use appropriately sized wires for the screw terminals and verify input polarity before applying power.