2 layers75 × 55 mm
Wellfed bench
Isaac-Duarte/wellfed
Open firmware that runs the PETLIBRO Granary PLAF103 pet feeder on your own Wi-Fi: no cloud, no account. Early and in testing.
93 parts8MIT
4 layers67 × 40 mm
Usb hub
evenevan/usb-hubKiCad design files for a USB hub based on the LAN9512
- Size
- 67 × 40 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 67
- Nets
- 66
- Pads
- 267
- Tracks, vias
- 551, 141
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 28 Sep 2026
- Updated
- 11 Oct 2026
Overview
Usb hub is an open-source printed circuit board by evenevan, from the evenevan/usb-hub repository on GitHub, published under the GPL-3.0 licence. It is a 4-layer board of 67 × 40 mm with 67 parts on 66 nets, routed with 551 tracks and 141 vias.
It is built around the AP2171WG, AP2112K-3.3 and LAN9512-JZX. Its parts include 32 capacitors, 22 resistors, 6 ICs, 1 diode and 1 connector. It belongs with the interfaces and adapters boards of this library.
Main components
3
AP2171WG
SOT-25-5-40℃~+85℃ 1 1A 2.7V~5.5V 95mΩ Active High High Side Switch Overcurrent Protection(OCP)、Overtemperature protection (OTP) SOT-25-5 Power Distribution Switches ROHSDiodes IncorporatedPower Distribution SwitchesAP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
LAN9512-JZX
QFN-64-EP(9x9)0℃~+70℃ 10BASE-T、100BASE-TX 3.3V JTAG USB Wake-up function、Power-on reset、Programmable LED indication、Low-power mode Yes QFN-64-EP(9x9) Ethernet Controllers ROHSMicrochip TechnologyEthernet Controllers
README
README.mdusb-hub
KiCad design files for a USB hub based on the LAN9512, offering 2x USB A and an Ethernet port
Parts
67| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 0.1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2, C3, C4, C5, C6, C7, C8, C9, C10, C11, C12 |
| 7 | 10K | Resistor_SMD:R_0603_1608Metric | R12, R13, R14, R15, R17, R18, R19 |
| 6 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C14, C15, C17, C19, C29, C31 |
| 4 | 15pF | Capacitor_SMD:C_0603_1608Metric | C24, C25, C26, C27 |
| 4 | 49.9R | Resistor_SMD:R_0603_1608Metric | R4, R5, R6, R7 |
| 3 | 10uF | Capacitor_SMD:C_0805_2012Metric | C28, C30, C32 |
| 3 | 330R | Resistor_SMD:R_0603_1608Metric | R8, R9, R10 |
| 2 | 1uF | Capacitor_SMD:C_0603_1608Metric | C16, C18 |
| 2 | 33pF | Capacitor_SMD:C_0603_1608Metric | C21, C22 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | R21, R22 |
| 2 | 600Ω @ 100MHz | Inductor_SMD:L_0603_1608Metric | FB1, FB2 |
| 2 | AP2171W | Package_TO_SOT_SMD:SOT-23-5 | U2, U3 |
| 1 | 0.022uF | Capacitor_SMD:C_0603_1608Metric | C23 |
| 1 | 10R | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 10nF | Capacitor_SMD:C_0603_1608Metric | C20 |
| 1 | 12.4K | Resistor_SMD:R_0603_1608Metric | R16 |
| 1 | 12K | Resistor_SMD:R_0603_1608Metric | R11 |
| 1 | 1M | Resistor_SMD:R_0603_1608Metric | R20 |
| 1 | 2171790001 | footprints:2171790001_MOL | J2 |
| 1 | 39.2K | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 4.7uF | Capacitor_SMD:C_0805_2012Metric | C13 |
| 1 | 61.9K | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U4 |
| 1 | Crystal_GND24 | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | LAN9512 | Package_DFN_QFN:QFN-64-1EP_9x9mm_P0.5mm_EP7.3x7.3mm | U1 |
| 1 | LED | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | LOGO | LOGO | G*** |
| 1 | RJ45-TH_HR913550AE | footprints:RJ45-TH_HR913550AE_HR913550AE_C192706 | U5 |
| 1 | USB-TH_UK-USB-AF-90-19_6 | footprints:USB-TH_UK-USB-AF-90-19_6_UK-USB_AF_90-19_6_C698206 | U6 |
| 1 | VCC_USB | Inductor_SMD:L_0603_1608Metric | FB3 |
Questions
How big is the Usb hub PCB?
It measures 67 × 40 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Usb hub use?
67 parts, built around the AP2171WG, AP2112K-3.3 and LAN9512-JZX. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Usb hub KiCad files?
From the evenevan/usb-hub repository on GitHub, at the commit this page was made from: the board is usb-hub.kicad_pcb and its schematic usb-hub.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Usb hub design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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