Use additional bulk capacitance or LC filters to mitigate high-frequency noise.
. Reverse-engineered schematics suggest implementing better PCB creepage distances to enhance safety for hobbyist applications. For design files, see the GitHub KiCad library Power supply WX-DC12003 5V housing - Thingiverse 3 Feb 2024 — wxdc12003 schematic better
: Many stock versions lack essential protection. A superior schematic includes a slow-blow fuse to prevent fire hazards and a Metal Oxide Varistor (MOV) to suppress transient voltage spikes from the mains. Use additional bulk capacitance or LC filters to
WX-DC12003 is a compact 3.5W isolated switching power supply module (5V/700mA) that can be improved by adding a 0.25A input fuse and upgrading output capacitors to reduce noise, as noted in community discussions on Thingiverse All About Circuits wxdc12003 schematic better