2 layers24.4 × 35.8 mm
2 layers40 × 9 mm
Casaba
Kaleidogeist/Casaba4USB-C breakout board with integrated protection.
- Size
- 40 × 9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 19
- Nets
- 12
- Pads
- 91
- Tracks, vias
- 64, 18
- Pours
- 8
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 26 Oct 2020
- Updated
- 6 Apr 2023
Overview
Casaba is an open-source printed circuit board by Kaleidogeist, from the Kaleidogeist/Casaba repository on GitHub, published under the MIT licence. It is a 2-layer board of 40 × 9 mm with 19 parts on 12 nets, routed with 64 tracks and 18 vias.
It is built around the TPD4E05U06DQAR. Its parts include 3 connectors, 2 capacitors, 2 resistors, 1 IC and 1 diode.
Main components
1README
README.mdCasaba
USB-C breakout board with integrated protection.
Disclaimer
This board is a USB daughterboard to be used in custom mechanical keyboard projects, allowing the implementation of most electrical protection required in a keyboard via a tested, proven PCB. It also allows the replacement of the USB-C port in case it is damaged during use. The shape of the board and the positions of the M3 mounting holes and USB-C connector is based on the Unified Daughterboard UDB-S, allowing for easy swap-in functionality.
Key Features
- "Wide and narrow" 40mm wide x 9mm deep x 1.6mm thick form factor.
- Avoids obstacles such as weights commonly found in custom keyboards.
- Mountable both right-side-up and upside-down.
- 2 x M3 mounting points.
- Cheap to source via JLC assembly.
- Large DB corner radii which allow keyboard cases to be milled at a large inner radius.
- ESD protection, overcurrent protection, overvoltage protection, noise filtering, and single-point ground to chassis functionality.
- Breaks out CC pins in addition to USB pins.
- On-board solder jumpers allowing the user to connect 5k1 pull-downs to the CC pins if breaking them out is not required.
Changelog
- 06/04/2023: Initial commit
Parts
19| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | JLC Tooling | Casaba:JLC Tooling Hole | H3, H4, H5 |
| 2 | 5k1 | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 1 | 10n | Capacitor_SMD:C_0402_1005Metric | C1 |
| 1 | 1u | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | 5V | Diode_SMD:D_SOD-523 | D1 |
| 1 | 5V 3A | Fuse:Fuse_0805_2012Metric | F1 |
| 1 | 60R@100MHz | Inductor_SMD:L_0805_2012Metric | FB1 |
| 1 | 78171-0002 | Casaba:Molex_Pico-EZmate_78171-0002_1x02-1MP_P1.20mm_Vertical | J3 |
| 1 | 78171-0004 | Casaba:Molex_Pico-EZmate_78171-0004_1x04-1MP_P1.20mm_Vertical | J2 |
| 1 | Ariamelon Logo | Casaba:Ariamelon_Logo-CU | A1 |
| 1 | CC1_5K1 | Casaba:SolderJumper-2_P1.3mm_Open_Pad0.5x1.0mm | JP1 |
| 1 | CC2_5K1 | Casaba:SolderJumper-2_P1.3mm_Open_Pad0.5x1.0mm | JP2 |
| 1 | Earth | MountingHole:MountingHole_3.2mm_M3_Pad | H1 |
| 1 | M3 | MountingHole:MountingHole_3.2mm_M3 | H2 |
| 1 | TPD4E05U06DQAR | Casaba:USON-10_2.5x1.0mm_P0.5mm | U1 |
| 1 | USB_C_Receptacle_USB2.0 | Casaba:HRO-TYPE-C-31-M-12 | J1 |
Questions
How big is the Casaba PCB?
It measures 40 × 9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Casaba use?
19 parts, built around the TPD4E05U06DQAR. 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 Casaba KiCad files?
From the Kaleidogeist/Casaba repository on GitHub, at the commit this page was made from: the board is PCB/Casaba.kicad_pcb and its schematic PCB/Casaba.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Casaba design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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