2 layers105.8 × 128.5 mm
2 layers105.8 × 128.5 mm
- Size
- 105.8 × 128.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 203
- Nets
- 83
- Pads
- 422
- Tracks, vias
- 1,115, 18
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 27 Jul 2025
- Updated
- 16 Sep 2025
Overview
Demo is an open-source printed circuit board by Nakazoto, from the Nakazoto/Data620 repository on GitHub. It is a 2-layer board of 105.8 × 128.5 mm with 203 parts on 83 nets, routed with 1,115 tracks and 18 vias.
Its parts include 76 resistors, 48 diodes, 40 connectors, 23 capacitors and 16 transistors.
Parts
203| Qty | Value | Footprint | References |
|---|---|---|---|
| 70 | R | custom:R_Axial_DIN0207_L6.3mm_D2.5mm_P12.7 mm_Horizontal | R1, R2, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23 +54 |
| 44 | 1N4148 | Diode_THT:D_A-405_P12.70mm_Horizontal | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +28 |
| 40 | Conn_01x02_Pin | TestPoint:TestPoint_2Pads_Pitch5.08mm_Drill1.3mm | J1, J2, J10, J11, J12, J13, J14, J15, J16, J17, J18, J19, J20, J21, J22, J23 +24 |
| 20 | C | Capacitor_THT:C_Rect_L7.0mm_W2.0mm_P5.00mm | C1, C2, C3, C4, C5, C10, C11, C12, C13, C14, C15, C16, C17, C18, C19, C20 +4 |
| 16 | Q_PNP_EBC | Package_TO_SOT_THT:TO-5-3 | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, Q10, Q11, Q12, Q13, Q14, Q15, Q16 |
| 6 | R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R67, R68, R71, R72, R73, R74 |
| 4 | D_Zener | Diode_THT:D_A-405_P12.70mm_Horizontal | D43, D44, D45, D48 |
| 2 | C | Capacitor_THT:C_Axial_L5.1mm_D3.1mm_P12.50mm_Horizontal | C22, C23 |
| 1 | C | Capacitor_THT:C_Axial_L12.0mm_D6.5mm_P15.00mm_Horizontal | C21 |
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Questions
How big is the Demo PCB?
It measures 105.8 × 128.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Demo use?
203 parts. 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 Demo KiCad files?
From the Nakazoto/Data620 repository on GitHub, at the commit this page was made from: the board is Schematics/Reverse Engineering/REG04/REG004_bruce273/demo.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Demo design in my own project?
Its repository states no licence, so its author keeps all rights: ask Nakazoto before reusing the design.