MEAN WELL 300W Regulated Isolated DC/DC Converter 24V DC Output, 67.2-143V DC Input, Surface Mount, -40°C to 55°C RSD-300D-24

MEAN WELL RSD-300D-24 is a high-performance, regulated isolated DC/DC Converter designed for vehicle and harsh industrial applications. It offers a 24V DC output at up to 300W power, accommodating a wide input voltage of 67.2V to 143V DC via a surface mount package. The converter features an isolation voltage of 4kV DC and exceptional efficiency of 91.5%, significantly reducing energy waste and heat generation.

This power supply complies with railway-related standards including EN50155, IEC60571, IEC61373, and EN50121-3-2, making it suitable for metro systems, rail vehicles, buses, and other systems requiring robust DC power sources. It is engineered with a 5G anti-vibration rating and can sustain operation in ambient temperatures ranging from -40°C to 55°C without forced air cooling.

Protection features include safeguards against short circuits, overloads, output over voltage, overheating, and reverse polarity input, ensuring safe and reliable operation. The half encapsulated packaging protects the PCB from moisture, dust, and assists heat dissipation, extending device life. The RSD-300 series is ideal for applications such as railway systems, metros, subways, buses, leisure trailers, vessels, security systems, DC UPS, and telecommunications equipment.

300W maximum output power suitable for harsh vehicle and industrial environments. Wide input voltage range from 67.2V to 143V DC ensuring flexibility. High efficiency of 91.5% for reduced energy loss. Includes multiple protections: short circuit, overload, over voltage, over temperature, and input reverse polarity.

Robust design with half encapsulated package and 4kV DC isolation voltage. Meets railway industry standards for shock, vibration, and EMI compliance. Surface mounting for easy PCB integration. MTBF of 1,850,100 hours for extended operational life.

Operating temperature range between -40°C and 55°C for reliability in extreme conditions.

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