4 layers33.5 × 15 mm
4 layers55 × 71.5 mm
Draft board
isd-guinn/PCB- Size
- 55 × 71.5 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 41
- Nets
- 29
- Pads
- 111
- Tracks, vias
- 67, 497
- Pours
- 19
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 2 Oct 2024
- Updated
- 17 Oct 2024
Overview
Draft board is an open-source printed circuit board by isd-guinn, from the isd-guinn/PCB repository on GitHub. It is a 4-layer board of 55 × 71.5 mm with 41 parts on 29 nets, routed with 67 tracks and 497 vias.
It is built around the NB679GD-Z and SLC-24VDC-SL-C. Its parts include 12 capacitors, 9 resistors, 6 diodes, 5 connectors and 2 switches.
Main components
2NB679GD-Z
QFN-12(2x3)QFN-12(2x3) DC-DC Converters ROHSMonolithic Power SystemsDC-DC Converters
SLC-24VDC-SL-C
插件,32.2x27.6mm100mΩ 10ms 10ms 24V 250V@AC 30A 5 640Ω 900mW Non-Polarized - Single Coil One set changeover: 1C (SPDT - changeover) 插件,32.2x27.6mm Power Relays ROHSNingbo Songle RelayPower Relays
Parts
41| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100k | Resistor_SMD:R_0603_1608Metric | R4, R5, R7, R8, R9 |
| 5 | 47u | Capacitor_SMD:CP_Elec_6.3x7.7 | C6, C7, C8, C9, C10 |
| 4 | LED | LED_SMD:LED_0603_1608Metric | D3, D4, D5, D6 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | H1, H2, H3, H4 |
| 2 | 200k | Resistor_SMD:R_0603_1608Metric | R2, R6 |
| 2 | 22u | Capacitor_SMD:C_1206_3216Metric | C4, C12 |
| 2 | 24VOUT | Connector_AMASS:AMASS_XT30U-F_1x02_P5.0mm_Vertical | J2, J3 |
| 2 | 4.7u | Capacitor_SMD:C_0603_1608Metric | C2, C3 |
| 2 | D_TVS | Diode_SMD:D_SMA | D1, D2 |
| 1 | 1.5uH | Inductor_SMD:L_Chilisin_BMRx00060630 | L1 |
| 1 | 1u | Capacitor_SMD:C_0603_1608Metric | C5 |
| 1 | 22u | Capacitor_SMD:CP_Elec_6.3x7.7 | C1 |
| 1 | 24VIN | Connector_AMASS:AMASS_XT60-F_1x02_P7.20mm_Vertical | J1 |
| 1 | 2M | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 3.3 | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 33u | Capacitor_SMD:CP_Elec_6.3x7.7 | C11 |
| 1 | 5VOUT_XT30 | Connector_AMASS:AMASS_XT30U-F_1x02_P5.0mm_Vertical | J5 |
| 1 | Fuse | Fuse:Fuseholder_Cylinder-5x20mm_Stelvio-Kontek_PTF78_Horizontal_Open | F1 |
| 1 | NB679GD-Z | NB679GD-Z:VREG_TPS51386RJNR | U1 |
| 1 | SLC-24VDC-SL-C | Relay_THT:Relay_SPDT_RAYEX-L90S | K1 |
| 1 | SW_SPST | Button_Switch_THT:SW_DIP_SPSTx01_Slide_9.78x4.72mm_W7.62mm_P2.54mm | SW1 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J6 |
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Questions
How big is the Draft board PCB?
It measures 55 × 71.5 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Draft board use?
41 parts, built around the NB679GD-Z and SLC-24VDC-SL-C. 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 Draft board KiCad files?
From the isd-guinn/PCB repository on GitHub, at the commit this page was made from: the board is draft-board/draft-board.kicad_pcb and its schematic draft-board/draft-board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Draft board design in my own project?
Its repository states no licence, so its author keeps all rights: ask isd-guinn before reusing the design.