MEAN WELL SD-25B-24 24W 24V DC-DC Converter, 19.2-36VDC Input, Chassis Mount

Delivering a stable 24 VDC at up to 1 A from a wide 19.2–36 VDC input, the MEAN WELL SD-25B-24 is a compact 24 W DC-DC converter built for demanding industrial environments. Its 1500 VDC input-to-output isolation and full protection suite make it a reliable power source for automation, control systems, and battery-powered equipment.

Overview

The SD-25B-24 belongs to MEAN WELL's SD-25 series, known for robust performance in a chassis-mount package. It accepts DC input from 19.2 to 36 V and provides a regulated 24 V output with ±0.5% line regulation and ±1.0% load regulation. The converter operates from -10°C to +60°C with free air convection cooling, ensuring dependable operation in a variety of settings.

What stands out

• Wide 2:1 input voltage range (19.2–36 VDC) for flexible system integration.
• High isolation voltage of 1500 VDC between input and output for safety.
• Comprehensive protections: short circuit, overload, and over voltage.
• Low ripple and noise (150 mVp-p) for sensitive loads.
• Efficiency up to 80%, reducing heat generation and energy waste.
• Simple screw terminal connections for quick installation.

Technical details

• Input voltage: 19.2 - 36 VDC
• Output voltage: 24 VDC
• Rated output current: 1 A
• Rated output power: 24 W
• Efficiency: 80%
• Isolation voltage: 1500 VDC I/O
• Number of outputs: 1
• Protections: Short Circuit, Overload, Over Voltage
• Operating temperature: -10 to +60°C
• Mounting type: Chassis Mount
• Cooling type: Free Air Convection
• Ripple & noise (max.): 150mVp-p
• Line regulation: ±0.5%
• Load regulation: ±1.0%
• Input connector type: Screw Terminals
• Output connector type: Screw Terminals
• Series: SD-25 Series

Our verdict

The MEAN WELL SD-25B-24 is a solid choice for engineers needing a reliable, isolated DC-DC converter in a compact chassis-mount form factor. Its wide input range and robust protections make it versatile for industrial and automotive applications.