# XY-SP5W 5128 - 5W Mono Audio Amplifier Module Class D Digital

**URL:** <https://forum.fritzing.org/t/xy-sp5w-5128-5w-mono-audio-amplifier-module-class-d-digital/33505>\
**Category:** parts submit\
**Created:** [December 7, 2025, 1:47pm UTC](https://forum.fritzing.org/t/xy-sp5w-5128-5w-mono-audio-amplifier-module-class-d-digital/33505 "2025-12-07T13:47:34Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![vanepp](https://forum.fritzing.org/user_avatar/forum.fritzing.org/vanepp/32/4426_2.png) [@vanepp](https://forum.fritzing.org/u/vanepp)\
**Post date:** [December 7, 2025, 2:44pm UTC](https://forum.fritzing.org/t/xy-sp5w-5128-5w-mono-audio-amplifier-module-class-d-digital/33505/2 "2025-12-07T14:44:37Z")

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Your part likely has scaling issues as the svgs are dimensioned in px,

Warning 19: File  
‘svg.schematic.XY-SP5W 5128\_1deb0f85b717b891bf3971a5d3e96a74\_2\_schematic.svg.bak’  
At line 3

Height 79.92 is defined in px  
in or mm is a better option (px can cause scaling problems!)

Warning 19: File  
‘svg.schematic.XY-SP5W 5128\_1deb0f85b717b891bf3971a5d3e96a74\_2\_schematic.svg.bak’  
At line 3

Width 83.146 is defined in px  
in or mm is a better option (px can cause scaling problems!)

Warning 19: File  
‘svg.pcb.XY-SP5W 5128\_1deb0f85b717b891bf3971a5d3e96a74\_2\_pcb.svg.bak’  
At line 2

Height 34 is defined in px  
in or mm is a better option (px can cause scaling problems!)

Warning 19: File  
‘svg.pcb.XY-SP5W 5128\_1deb0f85b717b891bf3971a5d3e96a74\_2\_pcb.svg.bak’  
At line 2

Width 42.5 is defined in px  
in or mm is a better option (px can, and in this case is, cause scaling problems!)

The schematic svg displayed in Inkscape is not on 0.1in boundaries which it should be and is dimensioned in px which should be in or mm.

 ![capture](https://forum.fritzing.org/uploads/default/original/3X/8/3/83bce858b4edfebaf16467d3154e474294fadd3a.jpeg)

which causes the pins to not be on 0.1in boundaries which they should be.

 ![capture1](https://forum.fritzing.org/uploads/default/original/3X/a/6/a64ee37378d0df9f1e93d0e3f5eb922a18297f41.jpeg)

and thus causes misalignment in schematic in Fritzing.

 ![capture2](https://forum.fritzing.org/uploads/default/original/3X/f/b/fb8c4ac40815daed5c6f54a634fecee97b2a1e3e.jpeg)

FritzingCheckPart.py (which generated the warning messages) and how to fix this is available in this part making tutorial.

> [@Part-creation-howto-part-1-breadboard-and-pcb](https://forum.fritzing.org/t/part-creation-howto-part-1-breadboard-and-pcb/7692):
>
> Someone in this forum post requested help to fix up a part. So while doing that I decided to record what I needed to do in order to fix the part to provide a tutorial to create new / fix broken parts. If you start from the Tarjeta S4A EDU.fzpz file posted in the above thread, you should be able to recreate my improved part posted in the same thread. I started by loading the original part in to Fritzing, that indicates breadboard is (at first look anyway) pretty good, but schematic and pcb are…

Peter

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