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2 layers26 × 27.9 mmUSBC I2C, the printed circuit board in 3D

Refer to README.pdf for detailed instructions on how to use our devices.

Size
26 × 27.9 mm
Copper layers
2
Thickness
0.8 mm
Parts
32
Nets
22
Pads
102
Tracks, vias
224, 27
Pours
3
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
21 Oct 2025
Updated
25 Apr 2026

Overview

USBC I2C is an open-source printed circuit board by OSHE-Github, from the OSHE-Github/OSHE-Framework repository on GitHub. It is a 2-layer board of 26 × 27.9 mm with 32 parts on 22 nets, routed with 224 tracks and 27 vias.

It is built around the DMC2053UVT. Its parts include 3 capacitors, 3 connectors, 2 resistors, 2 ICs and 1 transistor.

Main components

1

README

README.md

Refer to README.pdf for detailed instructions on how to use our devices.

Parts

32
QtyValueFootprintReferences
3Jumper PadsCustom Parts:Jumper Pads2x Pads, 2x Pads, 2x Pads
2,
22.54mm Pitch HeaderConnector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_HorizontalJ2, J3
2MountingHoleMountingHole:MountingHole_2.2mm_M2H1, H2
2TestPointTestPoint:TestPoint_Pad_1.5x1.5mmTP3, TP3
10.22uFCapacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolderC2
10.47uFCapacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolderC1
110uFCapacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolderC3
12.54mm Pitch HeaderConnector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_VerticalJ1
1470kResistor_SMD:R_1206_3216MetricR2
15.1kResistor_SMD:R_1206_3216MetricR1
1DMC2053UVTPackage_TO_SOT_SMD:TSOT-23-6Q1
1GNDTestPoint:TestPoint_Pad_D1.0mmTP7
1I2C ActivityTestPoint:TestPoint_Pad_D1.0mmTP4
1LOGOLOGOG***
1LTC4412xS6Package_TO_SOT_SMD:TSOT-23-6U2
1MCP2221AxSLPackage_SO:SOIC-14_3.9x8.7mm_P1.27mmU1
1OV StatusTestPoint:TestPoint_Pad_D1.0mmTP8
1PolyfuseFuse:Fuse_1206_3216MetricF1
1SW_DIP_x04Button_Switch_SMD:SW_DIP_SPSTx04_Slide_Omron_A6H-4101_W6.15mm_P1.27mmSW1
1URxTestPoint:TestPoint_Pad_D1.0mmTP1
1USB C Male ConnectorConnector_USB:USB_C_Plug_Molex_105444USB1
1USB StatusTestPoint:TestPoint_Pad_D1.0mmTP3
1UTxTestPoint:TestPoint_Pad_D1.0mmTP2
1VBusTestPoint:TestPoint_Pad_D1.0mmTP5
1VoTestPoint:TestPoint_Pad_D1.0mmTP6

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Questions

How big is the USBC I2C PCB?

It measures 26 × 27.9 mm and has 2 copper layers, 0.8 mm thick.

What parts does the USBC I2C use?

32 parts, built around the DMC2053UVT. 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 USBC I2C KiCad files?

From the OSHE-Github/OSHE-Framework repository on GitHub, at the commit this page was made from: the board is Projects/I2C⁄UART Expansion Card/USBC_I2C Kicad/USBC_I2C.kicad_pcb and its schematic Projects/I2C⁄UART Expansion Card/USBC_I2C Kicad/USBC_I2C.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the USBC I2C design in my own project?

Its repository states no licence, so its author keeps all rights: ask OSHE-Github before reusing the design.