Keychain
About the Keychain PCB
Keychain is an open source PCB design by zeti1223, published on GitHub under the MIT license. It is a 2-layer board measuring 24 × 36 mm, with 3 components from 3 distinct parts.
Other key parts include the NT2H1311F0DTLH. By type, the board carries 1 IC, 1 antenna and 1 capacitor.
From the project
This is a KiCad-based NFC keychain project using the NXP NT2H1311F0DTLH NFC Forum Type 2 Tag compliant IC.
This is a KiCad-based NFC keychain project using the NXP NT2H1311F0DTLH NFC Forum Type 2 Tag compliant IC.
The project features a compact, printed circuit board (PCB) based NFC keychain with 144 bytes of user memory and field detection capabilities.
- NFC Chip: NXP NT2H1311F0DTLH - NFC Type: NFC Forum Type 2 Tag compliant - Memory: 144 bytes user memory - Antenna: Integrated loop antenna - PCB: Black, 1.6mm thickness, HASL (with lead) surface finish - Size: Compact keychain-sized design
Main components on the Keychain
Keychain bill of materials (BOM)
3 components, 3 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | NT2H1311F0DTLH | SON50P200X150X50-5N | IC1 |
| 1 | Antenna_Loop | nfc_antenna | AE1 |
| 1 | ~ | C_0402_1005Metric | C1 |
Keychain design files
The KiCad project lives in the zeti1223/keychain repository on GitHub; these links point at the commit this page was built from.
- Layoutkeychain.kicad_pcb
- Schematickeychain.kicad_sch
- BOMBOM.csv
Keychain: common questions
How big is the Keychain PCB?
The Keychain measures 24 × 36 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Keychain?
3 components, from 3 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 Keychain design files?
From the zeti1223/keychain 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 Keychain design in my own project?
Yes, under the terms of its MIT license, which zeti1223 chose for the repository.