4 layers138.1 × 104.6 mm
V7-kaleido
vroland/epdiy-hardware
Hardware design files for EPDiy: https://github.com/vroland/epdiy.
140 parts75CC-BY-SA-4.0
2 layers35 × 20 mm
Nobmc
arachsys/nobmc1Reset and power-cycle servers using serial console breaks
- Size
- 35 × 20 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 18
- Nets
- 10
- Pads
- 40
- Tracks, vias
- 23, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 25 Feb 2023
- Updated
- 18 Oct 2026
Overview
Nobmc is an open-source printed circuit board by arachsys, from the arachsys/nobmc repository on GitHub, published under the MIT licence. It is a 2-layer board of 35 × 20 mm with 18 parts on 10 nets, routed with 23 tracks and 0 vias.
It is built around the 2N7002K, BZX384C5V1 and MBR0540. Its parts include 7 resistors, 4 diodes, 2 capacitors, 2 transistors and 1 connector.
Main components
3
2N7002K
SOT-23-55℃~+150℃ 1 N-channel 1.2Ω@10V、1.4Ω@5V 1.6V 2.9pF 300pC@4.5V 30pF 380mA 4.2pF 540mW 60V SOT-23 MOSFETs ROHSDiodes IncorporatedMOSFETs
BZX384C5V1
SOD-323200mW 2uA@2V 4.85V~5.36V 5.1V SOD-323 Zener Diodes ROHSTECH PUBLICZener Diodes
MBR0540
SOD-123-55℃~+150℃ 1 Independent 20uA@40V 40V 5.5A 500mA 510mV@500mA SOD-123 Schottky Diodes ROHSonsemiSchottky Diodes
Parts
18| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 220R | Resistor_SMD:R_0603_1608Metric | R1, R7 |
| 2 | 2N7002K | Package_TO_SOT_SMD:SOT-23 | Q1, Q2 |
| 2 | 470k | Resistor_SMD:R_0603_1608Metric | R3, R5 |
| 2 | 4M7 | Resistor_SMD:R_0603_1608Metric | R2, R6 |
| 2 | BZX384C5V1 | Diode_SMD:D_SOD-323 | D2, D3 |
| 2 | MBR0540 | Diode_SMD:D_SOD-123 | D1, D4 |
| 2 | ToolingHole_1.152mm | MountingHole:ToolingHole_1.152mm | HOLE, HOLE |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 1u | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 220n | Capacitor_SMD:C_0805_2012Metric | C2 |
| 1 | Conn_01x06 | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Horizontal | J1 |
Questions
How big is the Nobmc PCB?
It measures 35 × 20 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Nobmc use?
18 parts, built around the 2N7002K, BZX384C5V1 and MBR0540. 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 Nobmc KiCad files?
From the arachsys/nobmc repository on GitHub, at the commit this page was made from: the board is kicad/nobmc.kicad_pcb and its schematic kicad/nobmc.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Nobmc design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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