APX USB HUB

A 4-port USB 2.0 hub with per-port fault indication (PTC + LEDs).

About • Structure • Schematic • PCB • CAD • BOM • License • Contributing • Credits

About the Project

APX USB HUB is a 4-port USB hub designed with per-port fault indication: a PTC fuse helps protect the board in case of a short circuit, and LEDs help identify which port is causing issues.

Features

• 4 USB ports
• PTC protection to help limit current during short circuits
• Status LEDs to quickly identify the faulty port

Repository Structure

• src/easyeda/ — EasyEDA project sources
• production/ for fabrication outputs
• production/pcb/ — PCB fabrication files (Gerbers, BOM, Pick & Place)
• production/cad/ — 3D-printing files (.3mf)
• src/cad/ — mechanical CAD sources
• images/ — images used in the README and documentation

Schematic on EasyEDA

Source : src/easyeda/schem/

PCB on EasyEDA

Source : src/easyeda/pcb/

CAD

The entire product - render

• source: src/cad/

Parts to 3D print - render

• source: production/cad/

Bill of Materials

Source: production/pcb/bom.csv

ID	Name	Designator	Footprint	Quantity	Manufacturer Part	Manufacturer	Supplier	Supplier Part	Price	Pins
1	10uF	C1,C2,C3,C4,C5,C6,C7	C0603	7	CL10A106KP8NNNC	SAMSUNG(三星)	LCSC	C19702	0.008	2
2	NSR0320MW2T1G	D1	SOD-323_L1.8-W1.3-LS2.5-RD	1	NSR0320MW2T1G	onsemi(安森美)	LCSC	C48192	0.118	2
3	SMD1206P050TF	F1,F2,F3,F4	F1206	4	SMD1206P050TF	RUILON(瑞隆源)	LCSC	C20799	0.08	2
4	19-21/BHC-AN1P2/4T	L1,L2,L3,L4	LED0603-R-RD	4	19-21/BHC-AN1P2/4T	EVERLIGHT(亿光)	LCSC	C2986002	0.069	2
5	1kΩ	R1,R2,R3,R4	R0805	4	RC0805FR-071KL	YAGEO(国巨)	LCSC	C95781	0.003	2
6	SL2.1A	U1	SOP-16_L10.0-W3.9-P1.27-LS6.0-BL	1	SL2.1A	CoreChips(和芯润德)	LCSC	C192893	0.235	16
7	U-G-04DD-W-01	USB1	USB-A-TH_U-G-04WD-W-01	1	U-G-O4DD-W-1	韩国韩荣	LCSC	C98125	0.112	6
8	USB-AF-90-14.4X13.6-H7.0-DIP	USB2,USB3,USB4,USB5	USB-A-TH_C46407	4	903-131A1011D10100	精拓金	LCSC	C46407	0.048	6

License

This project is licensed under the MIT License — see the LICENSE file for details.

Contributing

Contributions, improvements, and remixes are welcome! Please read the CONTRIBUTING.md guide to get started.

Credits

This project uses:

• EasyEDA - PCB design and schematic capture
• PCBWAY - PCB manufacturing and assembly
• Figma - Silkscreen and banner design
• Fusion 360 - CAD modeling and render
• @NotARoomba - Readme template