2 layers85.4 × 54.1 mm
2 layers19.9 × 19.5 mm
Nfc pcb tag
ReFil/nfc-pcb-tagNFC keychain tag
- Size
- 19.9 × 19.5 mm
- Copper layers
- 2
- Thickness
- 0.8 mm
- Parts
- 15
- Nets
- 27
- Pads
- 66
- Tracks, vias
- 135, 12
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 28 Feb 2025
- Updated
- 11 Jan 2026
Overview
Nfc pcb tag is an open-source printed circuit board by ReFil, from the ReFil/nfc-pcb-tag repository on GitHub. It is a 2-layer board of 19.9 × 19.5 mm with 15 parts on 27 nets, routed with 135 tracks and 12 vias.
It is built around the NT3H2111W0FHKH. Its parts include 5 capacitors, 3 resistors, 2 ICs, 2 switches and 1 diode. It belongs with the radio and wireless boards and the RISC-V boards of this library.
Main components
1README
README.mdnfc-pcb-tag
NFC keychain/collar tag
Parts
15| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 10k | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 2 | 10uF | Capacitor_SMD:C_0402_1005Metric | C2, C6 |
| 2 | SW_Push | Button_Switch_SMD:SW_SPST_B3U-3000P | SW1, SW2 |
| 1 | 100nF | Capacitor_SMD:C_0402_1005Metric | C7 |
| 1 | 1k | Resistor_SMD:R_0402_1005Metric | R5 |
| 1 | 68p | Capacitor_SMD:C_0402_1005Metric | C3 |
| 1 | ANT | Library:ANT | ANT1 |
| 1 | C | Capacitor_SMD:C_0402_1005Metric | C1 |
| 1 | CH32V003FxUx | Package_DFN_QFN:QFN-20-1EP_3x3mm_P0.4mm_EP1.65x1.65mm | U1 |
| 1 | Conn_ARM_SWD_TagConnect_TC2030-NL | Connector:Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_Vertical | J1 |
| 1 | LED | LED_SMD:LED_0402_1005Metric | D1 |
| 1 | NT3H2111W0FHKH | Library:QFN50P160X160X50-8N | IC1 |
Questions
How big is the Nfc pcb tag PCB?
It measures 19.9 × 19.5 mm and has 2 copper layers, 0.8 mm thick.
What parts does the Nfc pcb tag use?
15 parts, built around the NT3H2111W0FHKH. 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 Nfc pcb tag KiCad files?
From the ReFil/nfc-pcb-tag repository on GitHub, at the commit this page was made from: the board is nfc-pcb-tag.kicad_pcb and its schematic nfc-pcb-tag.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Nfc pcb tag design in my own project?
Its repository states no licence, so its author keeps all rights: ask ReFil before reusing the design.
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