Wxdc12003 Schematic Better !!top!! -

Replace single electrolytic with:

: Basic modules frequently omit input filtering, leading to significant electrical noise. Adding an X-capacitor across the input and a common-mode choke significantly improves the module's EMI profile. wxdc12003 schematic better

: A high-frequency transformer provides safety isolation between the high-voltage AC input and the low-voltage DC output. Output Filtering Replace single electrolytic with: : Basic modules frequently

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