2 layers41.4 × 47.5 mm
U2f zero panel
conorpp/u2f-zero
U2F USB token optimized for physical security, affordability, and style
52 parts2.4k
2 layers41.4 × 14.5 mm
U2f zero
conorpp/u2f-zero2.4kU2F USB token optimized for physical security, affordability, and style
- Size
- 41.4 × 14.5 mm
- Copper layers
- 2
- Thickness
- 2 mm
- Parts
- 16
- Nets
- 28
- Pads
- 59
- Tracks, vias
- 179, 27
- Pours
- 9
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 31 Dec 2015
- Updated
- 1 Sep 2022
Overview
U2f zero is an open-source printed circuit board by conorpp, from the conorpp/u2f-zero repository on GitHub. It is a 2-layer board of 41.4 × 14.5 mm with 16 parts on 28 nets, routed with 179 tracks and 27 vias.
It is built around the DF5A5.6JE,LM. Its parts include 7 capacitors, 3 fuses, 1 resistor and 1 switch. It belongs with the Silicon Labs (EFR32, EFM) boards of this library.
Main components
1README
hardware/README.mdOverview
Parts
16| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | debug-pin | footprints:debug | C2CK1, C2D1, GND1, RX1, TX1 |
| 3 | u2f-fiducial | footprints:u2f-fiducial | F1, F2, F3 |
| 1 | 0.1uF | Capacitors_SMD:C_0805 | C3 |
| 1 | 100 | Resistors_SMD:R_0805 | R1 |
| 1 | 4.7uF | Capacitors_SMD:C_0805 | C4 |
| 1 | ATECC508A | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | A1 |
| 1 | CA_RGB | LEDs:LED_Cree-PLCC4_3.2x2.8mm_CCW | RGB1 |
| 1 | DF5A5.6JE | TO_SOT_Packages_SMD:SOT-353_SC-70-5 | Z1 |
| 1 | EFM8UB1_24pin | footprints:QSOP-24_3.9x8.7mm_Pitch0.635mm_fat | E0 |
| 1 | SW_PUSH | footprints:u2f-button | SW1 |
Questions
How big is the U2f zero PCB?
It measures 41.4 × 14.5 mm and has 2 copper layers, 2 mm thick.
What parts does the U2f zero use?
16 parts, built around the DF5A5.6JE,LM. 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 U2f zero KiCad files?
From the conorpp/u2f-zero repository on GitHub, at the commit this page was made from: the board is hardware/u2f-zero.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the U2f zero design in my own project?
Its repository states no licence, so its author keeps all rights: ask conorpp before reusing the design.
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