Unified Daughterboard
About the Unified Daughterboard PCB
Unified Daughterboard is an open source PCB design by str-dst, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 18 × 16.5 mm, with 6 components from 5 distinct parts.
By type, the board carries 2 connectors, 2 resistors, 1 diode and 1 inductor.
From the project
A simple USB daughterboard
This daughterboard features minimal electronics required for breaking out the VBUS, data and ground lines from a USB type C port. It includes a basic USB shielding circuit but has no ESD protection or fuse built in.
Fuse and (optional) ESD protection should be added on the main PCB if you want to use this for your project.
The daughterboard is pinout and size compatible with the Unified Daughterboard by ai03.
Unified Daughterboard bill of materials (BOM)
6 components, 5 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | USB_C_RECEPTACLE_USB2.0 USB_C_Receptacle_USB2.0 | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | CONN_01X04 Conn_01x04 | JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J2 |
| 1 | C151996 D_TVS | D_SOD-323 | D1 |
| 1 | C33600 L_Core_Ferrite | L_1206_3216Metric | L1 |
| 2 | 5.6K 5.6k | R_0603_1608Metric | R1, R2 |
Unified Daughterboard design files
The KiCad project lives in the str-dst/simplified-daughterboard repository on GitHub; these links point at the commit this page was built from.
- LayoutsDB.kicad_pcb
- BOMfab/bom.csv
Unified Daughterboard: common questions
How big is the Unified Daughterboard PCB?
The Unified Daughterboard measures 18 × 16.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Unified Daughterboard?
6 components, from 5 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 Unified Daughterboard design files?
From the str-dst/simplified-daughterboard repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Unified Daughterboard design in my own project?
Yes, under the terms of its CC-BY-SA-4.0 license, which str-dst chose for the repository.
