Dabao v3c
About the Dabao v3c PCB
Dabao v3c is an open source PCB design by Supermagnum, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 21 × 48.5 mm, with 35 components from 21 distinct parts.
Other key parts include the BAOCHIP1X and MT3406. By type, the board carries 17 capacitors, 8 resistors, 4 ICs, 2 inductors, 1 crystal and 1 connector.
From the project
A cryptographic framework for Baochip-1x .
This directory contains the KiCad design files for the Dabao evaluation board based USB-A version. Its for a USB-A security token with the Baochip-1x.
- dabaov3c.pdf — schematic / design PDF export - dabaov3c.jpg — top of the PCB (render or photo) - dabao_v3c-b.jpg — bottom of the PCB
- Enclosure/Enclosure.FCStd — FreeCAD project file (.FCStd). Open it in FreeCAD, a free, open-source parametric 3D modeler for Windows, macOS, and Linux.
Main components on the Dabao v3c
Dabao v3c bill of materials (BOM)
35 components, 21 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | BAOCHIP1X EMS4000RSW | QFN-10_1.4x1.8_Pitch0.4mm | U1 |
| 1 | baochip1x | WLCSP-71_9x8_4.062x3.762mm | U2 |
| 1 | MT3406 | SOT-23-5 | U3 |
| 1 | MT3406 | SOT-23-5 | U4 |
| 1 | 48.000MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | USB_C_RECEPTACLE_USB2.0_16P USB_A | USB_A_CNCTech_1001-011-01101_Horizontal | J1 |
| 1 | TS-1187A-B-B-B SW_Push | SW_Push_1P1T_XKB_TS-1187A | SW1 |
| 1 | SD103AWS 1N5819WS | D_SOD-323 | D1 |
| 2 | C281115 2.2uH MGFL2012F2R2MT-LF | L_0805_2012Metric | L1, L2 |
| 1 | C56903 33pF C0G | C_0201_0603Metric | C1 |
| 2 | CL05A105KA5NQNC 1.0uF, 10V, X5R | C_0201_0603Metric | C2, C10 |
| 3 | GRM033R60J225ME47D 2.2uF, 6.3V, X5R | C_0201_0603Metric | C3, C5, C8 |
| 5 | CL05B104KO5NNNC 0.1uF, 10V, X5R | C_0201_0603Metric | C4, C6, C7, C12, C13 |
| 1 | C76933 33pF C0G | C_0201_0603Metric | C9 |
| 4 | CL10A106MA8NRNC 10uF, 25V, X5R | C_0603_1608Metric | C11, C14, C15, C16 |
| 1 | CC0603KRX5R8BB104 100nF, 25V, X5R | C_0603_1608Metric | C17 |
| 3 | ANY 10k, 1% | R_0201_0603Metric | R1, R3, R4 |
| 1 | ANY 4.7M | R_0402_1005Metric | R2 |
| 1 | ANY 453k, 1% | R_0201_0603Metric | R5 |
| 2 | ANY 100k, 1% | R_0201_0603Metric | R6, R8 |
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| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ANY 43.2k, 1% | R_0201_0603Metric | R7 |
Dabao v3c design files
The KiCad project lives in the Supermagnum/Galdralag-firmware repository on GitHub; these links point at the commit this page was built from.
Dabao v3c: common questions
How big is the Dabao v3c PCB?
The Dabao v3c measures 21 × 48.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Dabao v3c?
35 components, from 21 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Dabao v3c design files?
From the Supermagnum/Galdralag-firmware repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Dabao v3c design in my own project?
Yes, under the terms of its GPL-3.0 license, which Supermagnum chose for the repository.
