

3do switch
- Size
- 43.2 × 20.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 23
- Nets
- 19
- Pads
- 42
- Tracks, vias
- 101, 0
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 25 Jan 2022
- Updated
- 30 Dec 2025
Overview
3do switch is an open-source printed circuit board by abzman, from the abzman/small-useful-PCBs repository on GitHub, published under the Unlicense licence. It is a 2-layer board of 43.2 × 20.6 mm with 23 parts on 19 nets, routed with 101 tracks and 0 vias.
It is built around the EG6201. Its parts include 18 connectors and 1 switch.
Main components
1README
README.mdsmall-useful-PCBs
Parts
23| Qty | Value | Footprint | References |
|---|---|---|---|
| 18 | Conn_01x01 | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J1, J2, J3, J4, J5, J6, J7, J10, J11, J12, J13, J14, J15, J16, J17, J18 +2 |
| 1 | EG6201 | Evan's misc parts:EG6201 | S1 |
| 1 | LOGO | Evan's misc parts:OSHW gear | G*** |
| 1 | LOGO | Evan's misc parts:Evan Logo | G*** |
The 21 most common of 23 parts.
Questions
How big is the 3do switch PCB?
It measures 43.2 × 20.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the 3do switch use?
23 parts, built around the EG6201. 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 3do switch KiCad files?
From the abzman/small-useful-PCBs repository on GitHub, at the commit this page was made from: the board is 3do switch/3do switch.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the 3do switch design in my own project?
Its repository publishes it under the Unlicense 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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