MEAN WELL LRS-100-5 90W 5V 18A Enclosed Switching Power Supply

Delivering 90 watts of reliable DC power from a compact metal enclosure, the MEAN WELL LRS-100-5 is a single-output switching power supply built for industrial and automation applications. With a 5V output at up to 18A, it efficiently converts a universal AC input into clean, regulated DC power.

Overview

The LRS-100-5 accepts a wide input voltage range of 85 to 264 VAC (or 120 to 370 VDC), making it suitable for use worldwide without the need for voltage selection switches. Its high efficiency of 85% reduces energy waste and heat generation, while free air convection cooling eliminates the need for a fan, ensuring silent operation and long-term reliability.

What stands out

• Compact metal case with chassis mount screw terminals for secure installation.
• Adjustable output voltage from 4.75V to 5.5V to compensate for voltage drops in long cable runs.
• Comprehensive protection against short circuits, overload, and overvoltage.
• Wide operating temperature range from -30°C to +70°C, suitable for harsh environments.
• Low ripple and noise (80mVp-p) ensures stable power for sensitive electronics.

Technical details

• Output voltage: 5V DC
• Output current: 18A
• Output power: 90W
• Input voltage: 85 ~ 264 VAC / 120 ~ 370 VDC
• Efficiency: 85%
• Ripple & noise: 80mVp-p
• Voltage adjustment range: 4.75 ~ 5.5V
• Protection: Short circuit, overload, overvoltage
• Operating temperature: -30 ~ +70°C
• Cooling: Free air convection
• Mounting: Chassis mount (screw terminals)
• Enclosure: Metal case
• Safety standards: UL 60950-1, TUV EN 60950-1
• EMC standards: EN 55022 Class B, EN 61000-3-2,3
• MTBF: >700,000 hours (MIL-HDBK-217F)
• Hold up time: 10ms at full load (230VAC)

Our verdict

A rugged and efficient power solution for demanding 5V applications, the LRS-100-5 combines high power density with proven MEAN WELL reliability.