2 layers25.4 × 39.4 mm
6 layers50 × 60 mm
Tuxkeychain
electron271/tuxkeychain18Keychain shaped like Tux that can run Linux.
- Size
- 50 × 60 mm
- Copper layers
- 6
- Thickness
- 1.6 mm
- Parts
- 56
- Nets
- 76
- Pads
- 246
- Tracks, vias
- 562, 82
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 20 May 2025
- Updated
- 29 Mar 2026
Overview
Tuxkeychain is an open-source printed circuit board by electron271, from the electron271/tuxkeychain repository on GitHub, published under the CC-BY-SA-4.0 licence. It is a 6-layer board of 50 × 60 mm with 56 parts on 76 nets, routed with 562 tracks and 82 vias.
It is built around the F1C100S, W25Q128JVSIQ and SMD0805B050TF. Its parts include 19 capacitors, 12 resistors, 5 ICs, 4 connectors and 2 switches. It belongs with the computers and single-board computers boards of this library.
Main components
3
F1C100S
MQFN-88MQFN-88 Microcontrollers (MCU/MPU/SOC) ROHSAllwinner TechMicrocontrollers (MCU/MPU/SOC)
W25Q128JVSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 120ms@(32KB) 128Mbit 133MHz 1uA 2.7V~3.6V 20 Years 3ms Power-on reset、Hardware write protection、Software write protection、Write enable latch、Absolute write protection SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
SMD0805B050TF
0805-40℃~+85℃ 1.25mm 1.5mm 100A 100ms 150mΩ 1A 2.2mm 500mA 500mW 6V 850mΩ 0805 Resettable Fuses ROHSBrightkingResettable Fuses
README
artwork/README.mdTux Keychain (/tux)
This folder contains the source files for the artwork of the Tux keychain.
Generated using https://gingerbread.wntr.dev/index.html. Set to 60x50mm.
Parts
56| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 100n | Capacitor_SMD:C_0402_1005Metric | C4, C5, C6, C7, C8, C12, C13, C14 |
| 4 | 2u2 | Capacitor_SMD:C_0402_1005Metric | C3, C19, C21, C23 |
| 3 | 150k | Resistor_SMD:R_0402_1005Metric | R13, R15, R17 |
| 3 | 22u | Capacitor_SMD:C_0402_1005Metric | C20, C22, C24 |
| 3 | LOGO | LOGO | G***, G***, G*** |
| 3 | TLV76701DRVx | Package_SON:WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm | U5, U7, U8 |
| 2 | Graphics | GRAPHIC2, GRAPHIC3 | |
| 2 | 1u | Capacitor_SMD:C_0402_1005Metric | C15, C16 |
| 2 | 2k2 | Resistor_SMD:R_0402_1005Metric | R7, R8 |
| 2 | 30p | Capacitor_SMD:C_0402_1005Metric | C17, C18 |
| 2 | 49k9 | Resistor_SMD:R_0402_1005Metric | R11, R12 |
| 1 | DrillHole | GRAPHIC1 | |
| 1 | 24MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q2 |
| 1 | 330 | Resistor_SMD:R_0402_1005Metric | R10 |
| 1 | 330k | Resistor_SMD:R_0402_1005Metric | R18 |
| 1 | 3k3 | Resistor_SMD:R_0402_1005Metric | R9 |
| 1 | 470k | Resistor_SMD:R_0402_1005Metric | R14 |
| 1 | 56k | Resistor_SMD:R_0402_1005Metric | R16 |
| 1 | Amphenol_10104111 | tuxkeychain:CONN_10104111-0001LF_AMP | J1 |
| 1 | EXPANSION | tuxkeychain:Jushuo_AFC07-S15FCA-00_1x15-1MP_P0.50_Horizontal | J3 |
| 1 | F1C100s | tuxkeychain:QFN-88_EP_10x10_Pitch0.4mm | U4 |
| 1 | FEL | Button_Switch_SMD:SW_SPST_B3U-1000P | SW2 |
| 1 | G*** | kibuzzard-687B5666 | kibuzzard-687B5666 |
| 1 | G*** | kibuzzard-688DDBDB | kibuzzard-688DDBDB |
| 1 | G*** | kibuzzard-687B569F | kibuzzard-687B569F |
| 1 | LED (RED) | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | RESET | Button_Switch_SMD:SW_SPST_B3U-1000P | SW1 |
| 1 | SMD0805B050TF | Fuse:Fuse_0805_2012Metric | F1 |
| 1 | Solder Pads | tuxkeychain:SolderPads12 | J5 |
| 1 | UART | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical_SMD_Pin1Left | J2 |
| 1 | W25Q128JVS | Package_SO:SOIC-8_5.3x5.3mm_P1.27mm | U6 |
| 1 | jumper | Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP1 |
More from electron271/tuxkeychain
1Similar boards
- 4 layers190 × 100 mm
Rioctrl controller
festlv/rioctrl-hw
Hardware design for modular CNC controller
281 parts16CERN-OHL-S-2.0 - 4 layers99.5 × 99.5 mm
- 4 layers45 × 40 mm
- 4 layers58.4 × 54 mm
- 4 layers149.6 × 98 mm
- 2 layers62 × 46 mm
- 4 layers30.1 × 66.6 mm
Network player
naguirre/mds-builder
The Manufacture du Son network player is a custom board built around an Allwinner f1c200s SoC running Linux and an ESP32-C3 companion chip providing Wi-Fi and BLE. Audio is routed out over SPDIF.
80 parts3MIT - 2 layers60.4 × 36 mm
Questions
How big is the Tuxkeychain PCB?
It measures 50 × 60 mm and has 6 copper layers, 1.6 mm thick.
What parts does the Tuxkeychain use?
56 parts, built around the F1C100S, W25Q128JVSIQ and SMD0805B050TF. 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 Tuxkeychain KiCad files?
From the electron271/tuxkeychain repository on GitHub, at the commit this page was made from: the board is tuxkeychain.kicad_pcb and its schematic expansion.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Tuxkeychain design in my own project?
Its repository publishes it under the CC-BY-SA-4.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).