Please refer to this post and the one it links to: [https://easyeda.com/forum/topic/Pads-NTPH-and-thermal-vias-81303ae1e03c45378575ea26fba1c136](https://easyeda.com/forum/topic/Pads-NTPH-and-thermal-vias-81303ae1e03c45378575ea26fba1c136)

Thanks. I followed all those up and experimented, but found it hard to get a result. Luckily, I found that Alexey Vorobyev has already solved my problem for this particular component:- 

@andyfierman, Sorry, my link may not have been the most helpful on for tis case. OTOH, the symbol and footprint you have indicated is not the best solution either. The symbol is unnecessarily large and the footprint has a number of problems related to pad numbering, use of a solid region and vias within the footprint. It does not conform to the rules described in: [https://easyeda.com/forum/topic/How-to-avoid-DRC-errors-when-connecting-to-PCB-Footprints-a-k-a-PCB-Libs-90bf944fe3644b21a7d27a9e9d8df8d6](https://easyeda.com/forum/topic/How-to-avoid-DRC-errors-when-connecting-to-PCB-Footprints-a-k-a-PCB-Libs-90bf944fe3644b21a7d27a9e9d8df8d6)<br> <br> and so generates a number of clearance and incomplete net DRC errors. Please have a look at this:  Which is constructed with a Symbol pin to 25 pad LGA package Footprint pad mapping in accordance with: [https://easyeda.com/forum/topic/How-to-avoid-DRC-errors-when-connecting-to-PCB-Footprints-a-k-a-PCB-Libs-90bf944fe3644b21a7d27a9e9d8df8d6](https://easyeda.com/forum/topic/How-to-avoid-DRC-errors-when-connecting-to-PCB-Footprints-a-k-a-PCB-Libs-90bf944fe3644b21a7d27a9e9d8df8d6)<br> <br> Symbol and Footprint drawn from: [https://recom\-power\.com/en/products/switching\-regulators/rec\-s\-RPM\-1\.0\.html?0\-1\.\-layout\-layout\-main\-layout\_body\-layout\_body\-main\-dataView\-viewContainer\-rows\-3\-item\-dataView\-tabs\-contentContainer\-panels\-3\-panel\-dataView\-viewContainer\-rows\-1\-item\-mediaTypes\-0\-table\-body\-rows\-1\-cells\-1\-cell\-downloadLink](https://recom-power.com/en/products/switching-regulators/rec-s-RPM-1.0.html?0-1.-layout-layout-main-layout_body-layout_body-main-dataView-viewContainer-rows-3-item-dataView-tabs-contentContainer-panels-3-panel-dataView-viewContainer-rows-1-item-mediaTypes-0-table-body-rows-1-cells-1-cell-downloadLink)<br> <br> Please check the footprint dimensions against the datasheet carefully. It should be possible to place this on a PCB and just route to it as required. Routing tracks through the GND pads should provide adequate heat shunting without the need for thermal vias but these could be placed manually on the tracks and through to a copper area on another layer if desired.

Thanks very much.

@Pedro4, Forgot to add: The RECOM datasheet is very vague about what you should do with the NC pin so best put a green Not Connected symbol on it in the schematic then you should not route to or across it in the PCB.

Yes, I've just left it be.