Power adapter/inverter Mean Well RSDW20G-05 20 W, Input 18–75 V, Output 5 V, RoHS

Mean Well RSDW20G-05 is a compact DC-DC railway single output converter providing a regulated 5 V DC output at up to 4 A from a wide 18–75 V DC input range. The unit features 1.5 kVDC input-to-output isolation, a DIP through-hole package and a remote ON/OFF control, and is intended for industrial and vehicle applications that require a reliable 5 V supply. The converter is RoHS-compliant and is supplied in bulk packs.

Advantages

The RSDW20G-05 offers a wide input range suitable for varied DC sources, high isolation between input and output for safety in railway and industrial environments, and a compact, lightweight DIP through-hole package that simplifies board mounting. Its remote ON/OFF function allows convenient power control and the fixed 5 V output delivers a stable supply for low-voltage electronics.

Suitable for

• Powering 5 V electronics in railway systems
• Vehicle electrical systems and mobile equipment
• Industrial control and automation with wide DC input voltages
• Embedded devices and communication modules requiring isolated 5 V rails

Key specifications

• Manufacturer: Mean Well
• Model / MPN: RSDW20G-05
• Input voltage: 18–75 V DC
• Output voltage: 5 V DC
• Output current: up to 4 A (20 W)
• Isolation: 1.5 kV DC I/O isolation
• Package: DIP through-hole
• Features: Remote ON/OFF, RoHS compliant
• Dimensions / weight: depth 50.8 mm, weight 35 g
• Packaging: supplied in bulk (300 pcs)

How to use

Mount the RSDW20G-05 in a PCB using its DIP through-hole leads and ensure correct input polarity and adequate clearance for heat dissipation. Connect a DC source within 18–75 V to the input terminals and take the regulated 5 V output from the output pins, observing the maximum 4 A load. Use the remote ON/OFF pin to enable or disable the output according to your system control logic, following Mean Well application notes for recommended control voltages and wiring.

Recommendations

For reliable operation, operate the converter within specified input and output limits, provide adequate cooling and follow EMC and grounding practices appropriate for railway and industrial installations. Verify mounting and soldering guidelines for DIP packages and consult the manufacturer’s datasheet for detailed thermal and protection characteristics.