2 layers78.1 × 61 mm
4 layers96.9 × 73.9 mm
FatChudRuns
AerorKus/FatChudRunsThreadmill for the crusty-ass white rat dog Tofu
- Size
- 96.9 × 73.9 mm
- Copper layers
- 4
- Thickness
- 1.63 mm
- Parts
- 104
- Nets
- 115
- Pads
- 444
- Tracks, vias
- 1,184, 232
- Pours
- 9
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 7 Feb 2026
- Updated
- 10 Apr 2026
Overview
FatChudRuns is an open-source printed circuit board by AerorKus, from the AerorKus/FatChudRuns repository on GitHub. It is a 4-layer board of 96.9 × 73.9 mm with 104 parts on 115 nets, routed with 1,184 tracks and 232 vias.
It is built around the STM32F107RBT6, DP83848IVV and ST730M33R, with the USBLC6-2SC6, ESDA6V1SC5 and ABM8G-25.000MHZ-B4Y-T among its other parts. Its parts include 60 resistors, 28 capacitors, 5 ICs, 4 diodes and 4 connectors. It belongs with the STM32 boards of this library.
Main components
10
STM32F107RBT6
LQFP-64(10x10)-40℃~+85℃ 128KB 12bit 12bit 2V~3.6V 32 Bit 51 64KB 72MHz ARM Cortex-M3 Built-in FLASH LQFP-64(10x10) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
DP83848IVV
LQFP-48(7x7)-40℃~+105℃ 1 10BASE-T、100BASE-TX 10Mbit/s、100Mbit/s 270mW 3.3V MII、RMII、SNI PHY Transceiver LQFP-48(7x7) Ethernet Transceivers ROHSTexas InstrumentsEthernet Transceivers
ST730M33R
SOT-23-5-40℃~+125℃@(Ta) 1 1.2V@(300mA) 28V 3.3V 300mA 5uA 70uVrms 75dB@(120Hz) Fixed Over Current Protection、Over Temperature Protection、Enable Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSSTMicroelectronicsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
USBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)ESDA6V1SC5
SOT-23-5L-40℃~+125℃ 18A@8/20us 190pF 2uA 400W 5.25V 6.1V 6.1V ESD Four channels IEC 61000-4-2 Unidirectional SOT-23-5L ESD and Surge Protection (TVS/ESD) ROHSSTMicroelectronicsESD And Surge Protection (TVS/ESD)
ABM8G-25.000MHZ-B4Y-T
SMD3225-4P-20℃~+70℃ 10pF 25MHz 60Ω ±30ppm ±30ppm SMD3225-4P Crystals ROHSAbraconCrystals
FTSH-107-01-L-DV-K-P-TR
SMD,P=1.27mm-55℃~+125℃ 1.27mm 1.27mm 14P 2 2.51mm 2x7P 3.05mm Black Gold Phosphor bronze Pin Header Surface Mount,Vertical SMD,P=1.27mm Pin Headers ROHSSamtecPin Headers
TS-1187A-B-A-B
SMD-4P,5.1x5.1mm-30℃~+85℃ 1.5mm 1.6N 100,000 cycles 12V 5.1mm 5.1mm 50mA Gold No Round Button SPST Surface Mount,Vertical Without Bracket SMD-4P,5.1x5.1mm Tactile Switches ROHSXKB ConnectionTactile Switches
TYPE-C-31-M-12
SMD-30℃~+80℃ 1 10,000 cycles 16P 20V 5A 7.35mm Female Surface Mount, Right Angle Type-C SMD USB Connectors ROHSHRO ElectronicsUSB Connectors
Z-21320110021001
插件,P=2.54mm-25℃~+105℃ 2 2.54mm 2.54mm 2.5mm 20P 2x10P 3mm 6mm Black Brass Pin Header Through Hole 插件,P=2.54mm Pin Headers ROHSNextronPin Headers
README
README.mdFatChudRuns
Threadmill for the crusty-ass white rat dog Tofu
Parts
104| Qty | Value | Footprint | References |
|---|---|---|---|
| 25 | 2.2k | Resistor_SMD:R_0603_1608Metric | R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R24, R27, R28, R29 +9 |
| 17 | 100nF | Capacitor_SMD:C_0603_1608Metric | C2, C3, C4, C5, C6, C10, C12, C13, C14, C15, C16, C17, C18, C20, C25, C28 +1 |
| 12 | 0 | Resistor_SMD:R_0603_1608Metric | R8, R9, R45, R46, R49, R54, R55, R56, R57, R58, R59, R60 |
| 8 | 50 | Resistor_SMD:R_0603_1608Metric | R22, R23, R25, R26, R31, R32, R33, R34 |
| 5 | 1uF | Capacitor_SMD:C_0603_1608Metric | C7, C21, C22, C23, C24 |
| 5 | 220 | Resistor_SMD:R_0603_1608Metric | R39, R40, R50, R51, R52 |
| 5 | 4.7k | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4, R53 |
| 4 | 10uF | Capacitor_SMD:C_0805_2012Metric | C1, C9, C11, C19 |
| 2 | 4pF | Capacitor_SMD:C_0603_1608Metric | C26, C27 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | R47, R48 |
| 2 | ESDA6V1SC5 | Package_TO_SOT_SMD:SOT-23-5 | D3, D4 |
| 2 | IR26-21C_L110_TR8 | LED_SMD:LED_1206_3216Metric | D1, D2 |
| 2 | ST730M33R | SOT_30M33R_STM:SOT_30M33R_STM | U4, U6 |
| 1 | 1.5k | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | 100 | Resistor_SMD:R_0603_1608Metric | R44 |
| 1 | 1825360-3 | 1825360_3:SWDIP8_300X185P100 | SW5 |
| 1 | 4.87k | Resistor_SMD:R_0603_1608Metric | R35 |
| 1 | ABM8G-25.000MHZ-B4Y-T | Crystal:Crystal_SMD_Abracon_ABM8AIG-4Pin_3.2x2.5mm | Y2 |
| 1 | DP83848I | Package_QFP:LQFP-48-1EP_7x7mm_P0.5mm_EP3.6x3.6mm_ThermalVias | U2 |
| 1 | FTSH-107-01-L-DV-K-P | CON14_2X7_DUK_FTSH_SAI:CON14_2X7_DUK_FTSH_SAI | J3 |
| 1 | RJ45_Pulse_JXD6-0001NL | JXD6-0001NL:RJ45_Pulse_JXD6-0001NL_Horizontal | J1 |
| 1 | STM32F107RBT6 | Package_QFP:LQFP-64_10x10mm_P0.5mm | U1 |
| 1 | TS-1187A-B-A-B | Button_Switch_SMD:SW_SPST_TL3342 | SW1 |
| 1 | TYPE-C-31-M-12 | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J4 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U3 |
| 1 | Z-21320110021001 | Connector_PinSocket_2.54mm:PinSocket_2x20_P2.54mm_Vertical | J2 |
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Questions
How big is the FatChudRuns PCB?
It measures 96.9 × 73.9 mm and has 4 copper layers, 1.63 mm thick.
What parts does the FatChudRuns use?
104 parts, built around the STM32F107RBT6, DP83848IVV, ST730M33R and USBLC6-2SC6. 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 FatChudRuns KiCad files?
From the AerorKus/FatChudRuns repository on GitHub, at the commit this page was made from: the board is FatChudRuns/FatChudRuns.kicad_pcb and its schematic FatChudRuns/ETH_PHY.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the FatChudRuns design in my own project?
Its repository states no licence, so its author keeps all rights: ask AerorKus before reusing the design.