GitHub2
About the GitHub2 PCB
GitHub2 is an open source PCB design by NaraenderHardware, published on GitHub under the MIT license. It is a 2-layer board measuring 33.5 × 30 mm, with 22 components from 8 distinct parts.
Other key parts include the L7805, L7812 and L7912. By type, the board carries 12 capacitors, 4 diodes, 3 ICs and 3 connectors.
From the project
PCB design, circuit development, and manufacturing engineering project files.
Design Type: Multi-Rail Linear Power Distribution (Surface-Mount) CAD Tool: KiCad Status: Defect identified during audit; manufacturing outputs quarantined; Revision A is an unverified draft schematic
This project is a surface-mount power supply board designed to deliver three regulated DC voltage rails: +5V, +12V, and -12V in a compact 33.5 mm x 30.0 mm footprint. The intended architecture takes a dual-polarity center-tapped AC transformer input or dual-polarity DC input to drive: - An L7805 regulator for a +5V logic rail - An L7812 regulator for a +12V analog/relay rail - An L7912…
Main components on the GitHub2
GitHub2 bill of materials (BOM)
22 components, 8 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | L7805 | TO-252-2 | U1 |
| 1 | L7812 | TO-252-2 | U2 |
| 1 | L7912 | TO-252-2 | U3 |
| 2 | CONN_01X03 Conn_01x03 | JST_PH_S3B-PH-SM4-TB_1x03-1MP_P2.00mm_Horizontal | J1, J3 |
| 1 | CONN_01X02 Conn_01x02 | JST_PH_S2B-PH-SM4-TB_1x02-1MP_P2.00mm_Horizontal | J2 |
| 4 | 1N4007 | D_SMA | D1, D2, D3, D4 |
| 6 | C_Polarized | CP_Elec_6.3x5.8 | C1, C2, C3, C7, C8, C9 |
| 6 | C | C_0805_2012Metric | C4, C5, C6, C10, C11, C12 |
GitHub2 design files
The KiCad project lives in the NaraenderHardware/pcb-design-manufacturing-engineering repository on GitHub; these links point at the commit this page was built from.
GitHub2: common questions
How big is the GitHub2 PCB?
The GitHub2 measures 33.5 × 30 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the GitHub2?
22 components, from 8 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the GitHub2 design files?
From the NaraenderHardware/pcb-design-manufacturing-engineering repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the GitHub2 design in my own project?
Yes, under the terms of its MIT license, which NaraenderHardware chose for the repository.
