Power adapter MEAN WELL DPBW03G-12 3W Input 18-75V Output 12V

The MEAN WELL DPBW03G-12 is a compact 3W DC-DC converter in a SIP through-hole package designed for PCB mounting. It accepts a wide input range of 18–75 VDC and provides a fixed 12 VDC output at up to 0.25 A. The module is RoHS compliant and intended for low-power applications where a reliable isolated or non-isolated step-down converter is required.

Advantages

This adapter offers a wide input voltage range that accommodates various battery and industrial supplies, a small footprint suitable for space-constrained PCB designs, and RoHS compliance for environmental safety. Its through-hole SIP package simplifies soldering and mechanical fixing on standard printed circuit boards.

Suitable for

• Embedded systems and small controllers
• Instrumentation and sensor modules
• Battery-powered equipment with wide input voltage
• Industrial control circuits requiring a stable 12 V rail

Key specifications

• Manufacturer: MEAN WELL
• Model / MPN: DPBW03G-12
• Input voltage: 18–75 VDC
• Output voltage: 12 VDC
• Output power: 3 W
• Output current: up to 0.25 A
• Package: SIP through-hole (PCB mount)
• RoHS compliance: yes
• EAN: 4021087046305

How to use

Solder the SIP pins into the PCB following the board’s footprint and ensure correct polarity of the input and output connections. Apply an input voltage within the specified 18–75 VDC range and verify the output voltage is 12 VDC under expected load. Observe recommended clearance and thermal conditions on the PCB to maintain proper cooling and reliable operation.

Recommendations

For stable performance, avoid operating at the maximum input or output ratings continuously; provide adequate PCB copper area for heat dissipation and follow the manufacturer’s layout guidance. Use appropriate input filtering and surge protection if the converter is connected to noisy or industrial power sources.