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2 layers85.7 × 54 mmBusinessCard, the printed circuit board in 3D

BusinessCard

nathab32/PCB-Card
Size
85.7 × 54 mm
Copper layers
2
Thickness
1.6 mm
Parts
14
Nets
9
Pads
29
Tracks, vias
44, 1
Pours
2
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
2 Jul 2026
Updated
2 Jul 2026

Overview

BusinessCard is an open-source printed circuit board by nathab32, from the nathab32/PCB-Card repository on GitHub. It is a 2-layer board of 85.7 × 54 mm with 14 parts on 9 nets, routed with 44 tracks and 1 via.

It is built around the 2SA812. Its parts include 4 resistors, 2 capacitors, 2 diodes, 2 transistors and 1 switch.

Main components

1

README

README.md

Parts

14
QtyValueFootprintReferences
2100kΩPCM_JLCPCB:R_0805R3, R4
2100ΩPCM_JLCPCB:R_0805R1, R2
222uFPCM_JLCPCB:C_0603C1, C2
22SA812PCM_JLCPCB:Q_SOT-23Q1, Q2
2GreenPCM_JLCPCB:D_0805D1, D2
13.7Vcustom:CR2025 Circuit Board Battery HolderBT1
1LOGOcustom:GithubProfileG***
1LOGOcustom:GithubQRG***
1Tactile Button, 160gfPCM_JLCPCB:SW-SMD_4P-L5.1-W5.1-P3.70-LS6.5-TL-2S1

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Questions

How big is the BusinessCard PCB?

It measures 85.7 × 54 mm and has 2 copper layers, 1.6 mm thick.

What parts does the BusinessCard use?

14 parts, built around the 2SA812. 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 BusinessCard KiCad files?

From the nathab32/PCB-Card repository on GitHub, at the commit this page was made from: the board is BusinessCard/BusinessCard.kicad_pcb and its schematic BusinessCard/BusinessCard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the BusinessCard design in my own project?

Its repository states no licence, so its author keeps all rights: ask nathab32 before reusing the design.