Hi Alex, Welcome to EasyEDA. `I cant find any symbol for that SMD part, associated with the right part.` You can search for and place a suitable symbol: ![enter image description here][1] and then search for and assign a suitable package to it. ![enter image description here][2] Don't forget to fill in all the BoM info into the schematic symbol once you've placed it. `Is there any problem to use a traditional power supply on schematic time...` That's OK but you **must** have a valid PCB package assigned to it before you click on `Convert Project to PCB...`. `...and then replace it, on PCB layout, by two small plates with right distancing? Are these the right steps?` No. This will create problems in your PCB if you try to update it from the schematic. * Before you go too much further, to save a lot of pain and wasted time, we strongly recommend that you read: https://easyeda.com/andyfierman/Welcome_to_EasyEDA-31e1288f882e49e582699b8eb7fe9b1f If this is your first project it would also help to make it public, then if you ask for help, others can see it. https://easyeda.com/Doc/Tutorial/Share.htm#Sharing [1]: /editor/20180105/5a4e51e6d1a14.png [2]: /editor/20180105/5a4e4fd7b1e7c.png

Great! There is a package for it! Great tips Thenk you very much Alex

Bear in mind that the package I found may not be the right one for the manufacturer or supplier information attached to the schematic symbol. The information attached to the symbol may not be valid or even present. So please check carefully against manufacturer and/or supplier pages and datasheets.