4 layers34 × 50 mm
W7500 MAC
Johannes4Linux/Ethernet_PCBs
PCBs for my GNU/Linux & Ethernet Tutorials
17 parts3CERN-OHL-S-2.0
4 layers65 × 50 mm
100BASE TX PHY Card
Johannes4Linux/Ethernet_PCBs3PCBs for my GNU/Linux & Ethernet Tutorials
- Size
- 65 × 50 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 41
- Nets
- 52
- Pads
- 178
- Tracks, vias
- 455, 84
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 1 Sep 2024
- Updated
- 31 Jan 2026
Overview
100BASE TX PHY Card is an open-source printed circuit board by Johannes4Linux, from the Johannes4Linux/Ethernet_PCBs repository on GitHub, published under the CERN-OHL-S-2.0 licence. It is a 4-layer board of 65 × 50 mm with 41 parts on 52 nets, routed with 455 tracks and 84 vias.
It is built around the LAN8710A-EZC and RJMG1BD3B8K1ANR. Its parts include 24 resistors, 10 capacitors, 3 connectors, 2 inductors and 1 IC.
Main components
2
LAN8710A-EZC
QFN-32-EP(5x5)0℃~+85℃ 1 1.6V~3.6V 10BASE-T、100BASE-TX 10Mbit/s、100Mbit/s MII、RMII PHY Transceiver QFN-32-EP(5x5) Ethernet Transceivers ROHSMicrochip TechnologyEthernet Transceivers
RJMG1BD3B8K1ANR
插件0℃~+70℃ 1 Gold Phosphor Bronze RJ45 Jack Right Angle Shielded With LED Plugin Ethernet Connectors / Modular Connectors (RJ45 RJ11) ROHSAmphenolEthernet Connectors / Modular Connectors (RJ45 RJ11)
README
README.mdPCBs for GNU/Linux & Ethernet Tutorials
This repositroy contains the KiCad Designs for the following PCBs:
- W7500 MAC Card: A PCB with the Wiznet W7500 chip which can be used as an SPI to Ethernet card. The PCB allows access to the MII over a pinheader and various Ethernet Transceiver Evaluation Boards can be connected to it.
- LAN8710A Ethernet Transceiver Card: PCB with the Microchip LAN8710A Ethernet Transceiver. The PCB can be connected to the W7500 MAC Card over the MII pinheader
License
This documentation describes Open Hardware and is licensed under the CERN OHL S v2.
You may redistribute and modify this documentation under the terms of the CERN OHL S v2 (http://ohwr.org/cernohl). This documentation is distributed WITHOUT ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING OF MERCHANTABILITY, SATISFACTORY QUALITY AND FITNESS FOR A PARTICULAR PURPOSE. Please see the CERN OHL S v2 for applicable conditions.
Parts
41| Qty | Value | Footprint | References |
|---|---|---|---|
| 15 | 10k 0603 | pcSwitchLib.PcbLib:0603 | R5, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24 |
| 5 | 100nF 0603 | pcSwitchLib.PcbLib:0603_CAP | C3, C4, C5, C7, C8 |
| 4 | 49R9 0603 | pcSwitchLib.PcbLib:0603 | R7, R8, R9, R10 |
| 2 | 330R 0603 | pcSwitchLib.PcbLib:0603 | R4, R6 |
| 2 | Ferrite bead 120R/100MHz | pcSwitchLib.PcbLib:0603_IND | L1, L2 |
| 1 | 100k 0603 | pcSwitchLib.PcbLib:0603 | R2 |
| 1 | 10nF | pcSwitchLib.PcbLib:1206_CAP | C9 |
| 1 | 10uF 1206 | pcSwitchLib.PcbLib:1206_CAP | C6 |
| 1 | 12k1 0603 | pcSwitchLib.PcbLib:0603 | R1 |
| 1 | 15pF 0603 | pcSwitchLib.PcbLib:0603_CAP | C10 |
| 1 | 1M 1206 | pcSwitchLib.PcbLib:1206 | R3 |
| 1 | 1uF 0603 | pcSwitchLib.PcbLib:0603_CAP | C2 |
| 1 | 25MHz 3225 | pcSwitchLib.PcbLib:XTAL_3225 | Y1 |
| 1 | 470pF 0603 | pcSwitchLib.PcbLib:0603_CAP | C1 |
| 1 | Header 11X2H | Miscellaneous Connectors.IntLib:HDR2X11H | P3 |
| 1 | LAN8710A | pcSwitchLib.PcbLib:LAN8710A | U1 |
| 1 | RJMG1BD3B8K1ANR | pcSwitchLib.PcbLib:RJMG1BD3B8K1ANR | P1 |
| 1 | SELECTOR 10WAY | pcSwitchLib.PcbLib:SELECTOR_10WAY | P2 |
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Questions
How big is the 100BASE TX PHY Card PCB?
It measures 65 × 50 mm and has 4 copper layers, 1.6 mm thick.
What parts does the 100BASE TX PHY Card use?
41 parts, built around the LAN8710A-EZC and RJMG1BD3B8K1ANR. 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 100BASE TX PHY Card KiCad files?
From the Johannes4Linux/Ethernet_PCBs repository on GitHub, at the commit this page was made from: the board is 100BASE_TX_PHY_Card/100BASE_TX_PHY_Card.kicad_pcb and its schematic 100BASE_TX_PHY_Card/100BASE_TX_PHY_Card.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the 100BASE TX PHY Card design in my own project?
Its repository publishes it under the CERN-OHL-S-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).