4 layers170.2 × 79 mm
2 layers86 × 54 mm
Krunchcard
krunchiekrunch/krunchcard1A card-sized NFC business card
- Size
- 86 × 54 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 42
- Nets
- 5
- Pads
- 182
- Tracks, vias
- 25, 1
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 18 Jul 2025
- Updated
- 28 Jul 2025
Overview
Krunchcard is an open-source printed circuit board by krunchiekrunch, from the krunchiekrunch/krunchcard repository on GitHub. It is a 2-layer board of 86 × 54 mm with 42 parts on 5 nets, routed with 25 tracks and 1 via.
It is built around the RP2040, NT3H2111W0FTTJ and 47UF50V-1206, with the CY29350AI, EW-632 and XL-3216UGC among its other parts. Its parts include 1 capacitor, 1 resistor, 1 IC and 1 diode. It belongs with the RP2040 boards of this library.
Main components
6
RP2040
LQFN-56(7x7)12bit 133MHz 30 LQFN-56(7x7) Microcontrollers (MCU/MPU/SOC) ROHSRaspberry PiMicrocontrollers (MCU/MPU/SOC)
NT3H2111W0FTTJ
MSOP-8106Kbit/s 13.56MHz 3.3V Data verification、Energy harvesting、Built-in non-volatile memory I2C ISO 14443,ISO 14443A,NFC MSOP-8 RFID ICs ROHSNXP SemiconductorsRFID ICs
47UF50V-1206
C120647uF 1206 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSJLCPCB AssemblyMultilayer Ceramic Capacitors MLCC - SMD/SMT
CY29350AI
TQFP-32(7x7)-40℃~+85℃ 2.375V~3.465V 200MHz TQFP-32(7x7) Clock Generators, PLLs, Frequency SynthesizersInfineon TechnologiesClock Generators, PLLs, Frequency SynthesizersEW-632
PG-SOT23-3_L3.0-W2.2-P1.90-LS3.1-BLPG-SOT23-3 New Arrivals ROHSAsahi Kasei MicrodevicesUncategorised
XL-3216UGC
1206-40℃~+85℃ 120° 20mA 3.4V 516nm~525nm 534nm 70mW 900mcd Discrete Diode Emerald Green Top-mount Water Clear 1206 LED Indication - Discrete ROHSXINGLIGHTLED Indication - Discrete
README
README.mdkrunchcard
A card-sized NFC business card
About
This is a simple credit card sized business card with NFC
Images
Schematic (click to expand)
| Schematic |
|---|
 |
| PCB | 3D Preview |
|---|---|
 |  |
 |  |
BOM
| Qty | Item | Notes | Cost (USD) | URL |
|---|---|---|---|---|
| 5 | 1206 220nF SMD Capacitor | C107186 | 0.50 | LCSC |
| 5 | 1206 Green SMD LED | C965825 | 0.44 | LCSC |
| 5 | 1206 47Ω SMD Resistor | C140015 | 0.21 | LCSC |
| 5 | NXP NT3H2111W0FTTJ IC | C2654884 | 0.70 | LCSC |
| 5 | PCB | JLCPCB | 3.51 | JLCPCB |
| 1 | Solder Paste | Manual soldering | 8.57 | Amazon |
| 1 | LCSC Shipping Cost + Fees | 5.58(Shipping) + 3(Handling) | 8.58 | - |
| - | - | - | 22.51 | - |
Parts
42| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | , , , | ||
| 1 | Adafruit PCB Reference Ruler:SMA-DIODE | E$43 | |
| 1 | Adafruit PCB Reference Ruler:MICROMELF-R | E$41 | |
| 1 | Adafruit PCB Reference Ruler:SOD-128 | E$47 | |
| 1 | Adafruit PCB Reference Ruler:NMOS-SYMB | E$50 | |
| 1 | Adafruit PCB Reference Ruler:NPN-SYMB | E$54 | |
| 1 | Adafruit PCB Reference Ruler:SMB-DIODE | E$44 | |
| 1 | Adafruit PCB Reference Ruler:PMOS-SYMB | E$51 | |
| 1 | Adafruit PCB Reference Ruler:SOD80C | E$49 | |
| 1 | Adafruit PCB Reference Ruler:PNP-SYMB | E$59 | |
| 1 | Adafruit PCB Reference Ruler:SMC | E$45 | |
| 1 | Adafruit PCB Reference Ruler:SOD-323 | E$48 | |
| 1 | Adafruit PCB Reference Ruler:SC79_INFINEON | E$42 | |
| 1 | 0201_C9900015864 | BackupProjects_krunchiekrunch_personal_0_20250719:C0201 | 0201 |
| 1 | 0603_C9900021180 | BackupProjects_krunchiekrunch_personal_0_20250719:C0603 | 0603 |
| 1 | 0805_C9900012713 | BackupProjects_krunchiekrunch_personal_0_20250719:C0805 | 0805 |
| 1 | 12.5PF-C0402 | BackupProjects_krunchiekrunch_personal_0_20250719:C0402 | 0402 |
| 1 | 1210 | BackupProjects_krunchiekrunch_personal_0_20250719:C1210 | 1210 |
| 1 | 220nF | BackupProjects_krunchiekrunch_personal_0_20250719:C1206 | C1 |
| 1 | 25X48MM_NFC_ANTENNA | BackupProjects_krunchiekrunch_personal_0_20250719:25X48MM_NFC_ANTENNA | NFC |
| 1 | 47UF50V-1206 | BackupProjects_krunchiekrunch_personal_0_20250719:C1206 | 1206 |
| 1 | 47Ω | BackupProjects_krunchiekrunch_personal_0_20250719:R1206 | R1 |
| 1 | BD733L2FP3-CE2_C2981755 | BackupProjects_krunchiekrunch_personal_0_20250719:PG-SOT223-4_L6.5-W3.5-P2.30-LS7.0-BR | SOT223 |
| 1 | CY15B064J-SXET_C2953071 | BackupProjects_krunchiekrunch_personal_0_20250719:SOIC-8_L4.9-W4.0-P1.27-LS6.0-BL | SOIC |
| 1 | CY29350AI | BackupProjects_krunchiekrunch_personal_0_20250719:TQFP-32_L7.0-W7.0-P0.80-LS9.0-TL | QFP |
| 1 | EW-632 | BackupProjects_krunchiekrunch_personal_0_20250719:PG-SOT23-3_L3.0-W2.2-P1.90-LS3.1-BL | SOT23 |
| 1 | LOGO | LOGO | G*** |
| 1 | NT3H2111W0FTTJ | BackupProjects_krunchiekrunch_personal_0_20250719:TSSOP-8_L3.0-W3.0-P0.65-LS4.9-BL | U1 |
| 1 | Pad_gge145080 | BackupProjects_krunchiekrunch_personal_0_20250719:Pad_gge145080 | Pad_gge145080 |
| 1 | Pad_gge145083 | BackupProjects_krunchiekrunch_personal_0_20250719:Pad_gge145083 | Pad_gge145083 |
| 1 | Pad_gge145086 | BackupProjects_krunchiekrunch_personal_0_20250719:Pad_gge145086 | Pad_gge145086 |
| 1 | Pad_gge145089 | BackupProjects_krunchiekrunch_personal_0_20250719:Pad_gge145089 | Pad_gge145089 |
| 1 | Pad_gge145092 | BackupProjects_krunchiekrunch_personal_0_20250719:Pad_gge145092 | Pad_gge145092 |
| 1 | Pad_gge145095 | BackupProjects_krunchiekrunch_personal_0_20250719:Pad_gge145095 | Pad_gge145095 |
| 1 | Pad_gge145098 | BackupProjects_krunchiekrunch_personal_0_20250719:Pad_gge145098 | Pad_gge145098 |
| 1 | RP2040 | BackupProjects_krunchiekrunch_personal_0_20250719:LQFN-56_L7.0-W7.0-P0.4-EP | QFN |
| 1 | SN74LVT244APWR | BackupProjects_krunchiekrunch_personal_0_20250719:TSSOP-20_L6.5-W4.4-P0.65-LS6.4-BL | SSOP |
| 1 | XL-3216UGC | BackupProjects_krunchiekrunch_personal_0_20250719:LED1206-R-RD_GREEN | D1 |
The 41 most common of 42 parts.
Questions
How big is the Krunchcard PCB?
It measures 86 × 54 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Krunchcard use?
42 parts, built around the RP2040, NT3H2111W0FTTJ, 47UF50V-1206 and CY29350AI. 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 Krunchcard KiCad files?
From the krunchiekrunch/krunchcard repository on GitHub, at the commit this page was made from: the board is pcb/highway/krunchcard.kicad_pcb and its schematic pcb/cat/krunchcard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Krunchcard design in my own project?
Its repository states no licence, so its author keeps all rights: ask krunchiekrunch before reusing the design.
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