2 layers27.2 × 91.6 mm
4 layers21 × 51 mm
Ch32-pico
fcjr/ch32-picoch32 > rpi2040
- Size
- 21 × 51 mm
- Copper layers
- 4
- Thickness
- 1 mm
- Parts
- 55
- Nets
- 58
- Pads
- 239
- Tracks, vias
- 707, 130
- Pours
- 34
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 12 Oct 2026
- Updated
- 23 Oct 2026
Overview
Ch32-pico is an open-source printed circuit board by fcjr, from the fcjr/ch32-pico repository on GitHub. It is a 4-layer board of 21 × 51 mm with 55 parts on 58 nets, routed with 707 tracks and 130 vias.
It is built around the CH32X035C8T6, SY8301ABC and B5819W, with the GT-USB-7010ASV, TVS2200DRVR and USBLC6-2SC6 among its other parts. Its parts include 10 resistors, 8 capacitors, 5 diodes, 2 ICs and 2 connectors. It belongs with the RP2040 boards of this library.
Main components
6
CH32X035C8T6
LQFP-48(7x7)Microcontrollers (MCU/MPU/SOC)WCH (Nanjing Qinheng Microelectronics)
SY8301ABC
SOT-23-6-40℃~+85℃@(TA) 1 1.6MHz~2.4MHz 1A 22uA 4.5V~40V Adjustable Buck Buck Built-in Yes SOT-23-6 DC-DC Converters ROHSSilergy CorpDC-DC Converters
B5819W
SOD-123-55℃~+125℃ 1.5A 1mA@40V 25A 40V 600mV@1A Standalone SOD-123 Schottky Diodes ROHSMDDSchottky Diodes
GT-USB-7010ASV
SMD-40℃~+85℃ 1 1.68mm 10,000 Cycles 16P 24V 3A 7.35mm Black Female Surface Mount, Right Angle Type-C USB 2.0 SMD USB Connectors ROHSG-SwitchUSB Connectors
TVS2200DRVR
DFN-6(2x2)DFN-6(2x2) ESD and Surge Protection (TVS/ESD) ROHSWuxi MaxinmicroUncategorisedUSBLC6-2SC6
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)
README
hardware/review/README.mdch32-pico layout checkpoint
Open ch32-pico.kicad_pcb in KiCad 10.0.6. The local footprint table points to the vendored library.
The validation report records the source checks, DRC, connectivity, routing comparison and outstanding prototype work. Layer previews: front, back, ground, inner power/signals.
See build instructions for regenerating this checkpoint and manufacturing for fabrication outputs.
Parts
55| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 100nF / 50V | ch32-pico:C0402 | C4, C6, C9, C11 |
| 3 | GND | ch32-pico:TestPad_1mm | TP4, TP13, TP16 |
| 2 | 100k | ch32-pico:R0402 | R1, R15 |
| 2 | 10k | ch32-pico:R0402 | R2, R10 |
| 2 | 22uF / 10V | ch32-pico:C0805 | C2, C3 |
| 2 | 5.1k | ch32-pico:R0402 | R3, R4 |
| 2 | B5819W | ch32-pico:SOD-123_L2.7-W1.6-LS3.7-RD-1 | D1, D4 |
| 1 | 10uF / 50V | ch32-pico:C1206 | C1 |
| 1 | 15k | ch32-pico:R0402 | R14 |
| 1 | 1k | ch32-pico:R0402 | R11 |
| 1 | 1uF | ch32-pico:C0402 | C7 |
| 1 | 3V3_OUT | ch32-pico:TestPad_1mm | TP3 |
| 1 | 4.7k | ch32-pico:R0402 | R12 |
| 1 | 4.7uH | ch32-pico:IND-SMD_L5.0-W5.0-P3.60_SMNR5040 | L1 |
| 1 | 47k | ch32-pico:R0402 | R13 |
| 1 | BOOT | ch32-pico:SW-SMD_L3.9-W3.0-P4.45 | SW2 |
| 1 | CC1 | ch32-pico:TestPad_1mm | TP19 |
| 1 | CC2 | ch32-pico:TestPad_1mm | TP20 |
| 1 | CH32X035C8T6 | ch32-pico:LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | GT-USB-7010ASV | ch32-pico:USB_C_Receptacle_G-Switch_GT-USB-7010 | J2 |
| 1 | PA21 | ch32-pico:TestPad_1mm | TP5 |
| 1 | PA3 | ch32-pico:TestPad_1mm | TP14 |
| 1 | PB1 | ch32-pico:TestPad_1mm | TP18 |
| 1 | PB12 | ch32-pico:TestPad_1mm | TP11 |
| 1 | PB13 | ch32-pico:TestPad_1mm | TP12 |
| 1 | PB2 | ch32-pico:TestPad_1mm | TP21 |
| 1 | PB4 | ch32-pico:TestPad_1mm | TP7 |
| 1 | PB5 | ch32-pico:TestPad_1mm | TP8 |
| 1 | PB8 | ch32-pico:TestPad_1mm | TP9 |
| 1 | PB9 | ch32-pico:TestPad_1mm | TP10 |
| 1 | PC6 | ch32-pico:TestPad_1mm | TP6 |
| 1 | PC7 OPTION | ch32-pico:SolderJumper_Open | SJ1 |
| 1 | PICO 40-PIN | ch32-pico:Pico_Header | J1 |
| 1 | RED / STATUS | ch32-pico:LED-SMD_L1.6-W0.8-R-RD | D3 |
| 1 | RESET | ch32-pico:SW-SMD_L3.9-W3.0-P4.45 | SW1 |
| 1 | SDCK | ch32-pico:TestPad_1mm | TP2 |
| 1 | SDIO | ch32-pico:TestPad_1mm | TP1 |
| 1 | STATUS_LED | ch32-pico:TestPad_0.6mm | TP22 |
| 1 | SY8301ABC | ch32-pico:SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BL | U4 |
| 1 | TVS2200DRVR | ch32-pico:WSON-6_L2.0-W2.0-P0.65-BL-EP | D5 |
| 1 | USBLC6-2SC6 | ch32-pico:SOT-23-6 | D2 |
| 1 | USB_DM | ch32-pico:USB_Probe_Inline | TP24 |
| 1 | USB_DP | ch32-pico:USB_Probe_Inline | TP23 |
| 1 | VBUS | ch32-pico:TestPad_1mm | TP15 |
| 1 | VBUS_SENSE | ch32-pico:TestPad_1mm | TP17 |
Questions
How big is the Ch32-pico PCB?
It measures 21 × 51 mm and has 4 copper layers, 1 mm thick.
What parts does the Ch32-pico use?
55 parts, built around the CH32X035C8T6, SY8301ABC, B5819W and GT-USB-7010ASV. 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 Ch32-pico KiCad files?
From the fcjr/ch32-pico repository on GitHub, at the commit this page was made from: the board is hardware/review/ch32-pico.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Ch32-pico design in my own project?
Its repository states no licence, so its author keeps all rights: ask fcjr before reusing the design.
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