MEAN WELL SD-50B-24 DC-DC Converter 24V 2.1A 50W Industrial Power Module

The SD-50B-24 stands apart from generic DC-DC converters by combining a wide 19.2–30V DC input with a tightly regulated 24V output, all in a rugged chassis-mount package built for continuous industrial duty. Its 50.4W rating and 2.1A current capacity make it a reliable backbone for automation, control, and vehicle-mounted systems where stable power is non-negotiable.

Highlights

• Wide 19.2–30V DC input range for flexible integration with batteries, DC buses, or rectified sources
• Precise 24V DC output with ±1% voltage tolerance and low ripple (150mVp-p)
• Full protection suite: short circuit, overload, over voltage, and input reverse polarity
• High efficiency up to 80% reduces heat and energy waste
• Free air convection cooling – no fan, no noise, no moving parts
• 1500V AC input-to-output isolation for safety and noise immunity
• Complies with UL60950-1 and TUV EN60950-1 safety standards

In daily use

Installation is straightforward: secure the chassis-mount module with screws, connect your DC input (19.2–30V), and the output delivers clean 24V power to your load. The unit operates reliably from -10°C to +60°C, making it suitable for both indoor cabinets and sheltered outdoor enclosures. With a calculated MTBF exceeding 200,000 hours, it is engineered for years of unattended operation.

Full specifications

• Input voltage range: 19.2–30V DC
• Output voltage: 24V DC
• Rated output current: 2.1A
• Rated output power: 50.4W
• Efficiency: 80%
• Isolation voltage: 1500V AC (input/output)
• Protection: short circuit, overload, over voltage, input reverse polarity
• Operating temperature: -10°C to +60°C
• Cooling: free air convection
• Ripple & noise: 150mVp-p
• Line regulation: ±0.5%
• Load regulation: ±1.0%
• Safety standards: UL60950-1, TUV EN60950-1
• EMC: EN55022 Class B
• MTBF: >200,000 hours
• Output voltage tolerance: ±1%
• Max input current: 2.6A (at 19.2V input, full load)
• Mounting: chassis mount

Final note

For engineers and integrators who demand a dependable, no-frills DC-DC converter, the SD-50B-24 delivers consistent performance without unnecessary complexity.