Nfdb
davek184·nfdb
About the Nfdb PCB
Nfdb is an open source PCB design by davek184, published on GitHub under the MIT license. It is a 2-layer board measuring 40 × 24 mm, with 7 components from 6 distinct parts.
Other key parts include the USBLC6-2SC6. By type, the board carries 2 connectors, 2 resistors, 1 IC, 1 fuse and 1 capacitor.
From the project
For all models of the Norbaforce (also works with the Norbauer Data Pad).
For all models of the Norbaforce (also works with the Norbauer Data Pad).
Features USB-C port, ESD protection, over voltage protection, CC1 & CC2 resistors to work with USB-C to C cables.
Finishes on Norbaforces vary greatly. They were designed for USB mini cables so it is possible a USB-C cable end may not fit depending a finish. In those cases a very light filing of the USB opening using a hobby file can enlarge the opening just enough for the cable.

Main components on the Nfdb
Nfdb bill of materials (BOM)
7 components, 6 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | USBLC6-2SC6 | USBLC6-2SC6 | U1 |
| 1 | TYPE-C-31-M-12 | HRO-TYPE-C-31-M-12 | J1 |
| 1 | JST_EH_S4B-EH_1x04_P2.50mm_Horizontal | JST_EH_S4B-EH_1x04_P2.50mm_Horizontal | J2 |
| 1 | C261942 Polyfuse_Small | F_0805 | F1 |
| 1 | 4.7N 4.7n | R_0805 | C1 |
| 2 | 5.1K 5.1k | R_0805 | R1, R2 |
Nfdb design files
The KiCad project lives in the davek184/nfdb repository on GitHub; these links point at the commit this page was built from.
- Layoutnfdb.kicad_pcb
- Schematicnfdb.kicad_sch
- BOMmanufacturing/RF2/nfdb_Rev1.1_RF2_bom.csv
Nfdb: common questions
How big is the Nfdb PCB?
The Nfdb measures 40 × 24 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Nfdb?
7 components, from 6 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 Nfdb design files?
From the davek184/nfdb 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 Nfdb design in my own project?
Yes, under the terms of its MIT license, which davek184 chose for the repository.