Power adapter/inverter Mean Well RDDW20G-05 — 20 W, input 18–75 V, output 5 V, RoHS

Mean Well RDDW20G-05 is a compact DC-DC railway dual output converter designed for industrial and transportation applications. It accepts a wide input range of 18–75 VDC and provides a regulated +5 V output with a rated power of 20 W. The module features 1.5 kVDC input-to-output isolation, a DIP through-hole package and remote ON/OFF control, making it suitable for embedded systems, industrial electronics and vehicular installations.

Advantages

The RDDW20G-05 offers a wide 18–75 VDC input range and a fixed +5 V output, enabling compatibility with varied power sources. Its small depth (50.8 mm) and low weight (35 g) allow space-efficient integration. The 1.5 kVDC isolation enhances safety between input and output circuits, and the remote ON/OFF feature provides convenient system-level control. RoHS compliance ensures the product meets common environmental regulations.

Suitable for

• Embedded systems and control boards
• Industrial electronics and automation equipment
• Railway and transportation power modules
• Automotive and vehicle electronics
• Volume installations and OEM assemblies (packaged in 300 pcs)

Key specifications

• Model: Mean Well RDDW20G-05 (MPN: RDDW20G-05, EAN: 4021087048583)
• Power rating: 20 W
• Input voltage: 18–75 VDC
• Output: +5 VDC, rated current up to 2 A (±5 VDC at ±2 A indicated for dual output converters; this model provides fixed +5 V output as specified)
• Isolation: 1.5 kVDC input-to-output
• Package: DIP through-hole
• Controls: Remote ON/OFF
• Dimensions & weight: depth 50.8 mm, weight 35 g
• Compliance: RoHS

How to use

Install the RDDW20G-05 in a PCB using the DIP through-hole pins and observe correct polarity and isolation clearances. Connect a suitable 18–75 VDC source to the input terminals and load the +5 V output within the 20 W power limit. Use the remote ON/OFF control to enable or disable the output as part of system power management. Ensure adequate ventilation and follow the manufacturer's mounting and wiring guidelines.

Recommendations

For reliable operation, keep the output load within specified current and power limits, maintain required creepage and clearance distances per installation standards, and avoid exposure to temperatures or environments outside the product datasheet limits. Use packs of 300 pieces for large-scale deployments where consistent part sourcing is required.