2 layers43.8 × 31.8 mm
2 layers77.5 × 50.8 mm
Sdb
0x007E/sdbSwitch Development Board
- Size
- 77.5 × 50.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 68
- Nets
- 41
- Pads
- 184
- Tracks, vias
- 182, 49
- Pours
- 13
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 24 Mar 2026
- Updated
- 12 May 2026
Overview
Sdb is an open-source printed circuit board by 0x007E, from the 0x007E/sdb repository on GitHub. It is a 2-layer board of 77.5 × 50.8 mm with 68 parts on 41 nets, routed with 182 tracks and 49 vias.
It is built around the BAT43, BUK7880-55A-VB and PEC12R-4225F-S0024. Its parts include 25 connectors, 20 resistors, 7 switches, 5 capacitors and 2 diodes. It belongs with the microcontroller boards boards of this library.
Main components
3
BAT43
DO-204AH-65℃~+125℃ 1 Independent 1V@0.2A 200mA 30V 4A 500nA@25V DO-204AH Schottky Diodes ROHSSTMicroelectronicsSchottky Diodes
BUK7880-55A-VB
SOT-223-55℃~+150℃ 1 N-channel 100pF 120pF 2.5V 22nC@10V 4.5A 60V 76mΩ@10V、85mΩ@4.5V 810pF N-Channel SOT-223 MOSFETs ROHSVBsemi ElecMOSFETs
PEC12R-4225F-S0024
插件-30℃~+70℃ 10mA 24/24 5V Incremental Straight Two-phase output 插件 Rotary Encoders ROHSBournsRotary Encoders
README
README.md
SDB - Switch Development Board
The SDB is a board with differnt type of switches, like push-buttons, a dip-switch, a code switch SH-7050 and a rotary encoder PEC12R. The board itself can be driven from 3 to 15V. The board offers the possibility to switch signals in different ways to any analog/digital development board or any other circuit.
| Experience | Level |
|---|---|
| Soldering |
Downloads
| Type | File | Description |
|---|---|---|
| Schematic | pdf / cadlab | Schematic files |
| Board | pdf / cadlab | Board file |
| Drill | Drill file | |
| PCB | zip / tar | KiCAD/Gerber/BoM/Drill files |
| Mechanical | zip / tar | FreeCAD/Housing and exported step/stl files |
Hardware
The pcb is created with KiCAD. All files are built with github actions so that they are ready for a production environment.
PCB
The circuit board is populated on both sides (Top, Bottom). The best way for soldering the SMD components is within a vapor phase soldering system and for the THT components with a standard soldering system.
Top Layer
Bottom Layer
Additional Information
| Type | Link | Description |
|---|---|---|
| SH-7050 | Nidec rotary coded switch | |
| PEC12R | Bourns PEC12R - 12 mm Incremental Encoder |
R. GAECHTER
Parts
68| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 10k | Resistor_SMD:R_1206_3216Metric | R2, R3, R4, R5, R7, R8, R9, R10, R12, R13, R14, R15, R16, R17, R18, R25 |
| 7 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1, J13, J14, J15, J16, J21, J23 |
| 6 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J10, J12, J18, J19, J20, J22 |
| 6 | Conn_02x02_Counter_Clockwise | Connector_PinSocket_2.54mm:PinSocket_2x02_P2.54mm_Vertical | J4, J5, J6, J7, J8, J9 |
| 4 | 100n | Capacitor_SMD:C_1206_3216Metric | C2, C3, C4, C5 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_Pad | H1, H2, H3, H4 |
| 4 | SW_SPST | Button_Switch_THT:SW_PUSH_6mm_H5mm | SW1, SW2, SW3, SW4 |
| 3 | 330 | Resistor_SMD:R_1206_3216Metric | R1, R6, R11 |
| 2 | Conn_01x04_Socket | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J11, J17 |
| 2 | Conn_01x10_Socket | Connector_PinSocket_2.54mm:PinSocket_1x10_P2.54mm_Vertical | J2, J3 |
| 1 | 10u | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C1 |
| 1 | 1k | Resistor_SMD:R_1206_3216Metric | R19 |
| 1 | BAT43 | Diode_SMD:D_MiniMELF | D1 |
| 1 | BUK7880-55A | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | Q1 |
| 1 | BZ5V1 | Diode_SMD:D_MiniMELF | D2 |
| 1 | Conn_01x02_Socket | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J24 |
| 1 | Conn_01x03_Socket | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | J25 |
| 1 | ESD | Symbol:ESD-Logo_6.6x6mm_SilkScreen | FID1 |
| 1 | OH | Symbol:OSHW-Logo_5.7x6mm_SilkScreen | FID3 |
| 1 | PEC12R-4225F-S0024 | Encoder:XDCR_PEC12R-4225F-S0024 | S1 |
| 1 | QR | Images:QR_0x007e_very_small | FID4 |
| 1 | SW_Coded_SH-7050 | Button_Switch_THT:Nidec_Copal_SH-7010C | SW5 |
| 1 | SW_DIP_x02 | Button_Switch_THT:SW_DIP_SPSTx02_Slide_6.7x6.64mm_W7.62mm_P2.54mm_LowProfile | SW6 |
| 1 | Waste | Symbol:WEEE-Logo_4.2x6mm_SilkScreen | FID2 |
Questions
How big is the Sdb PCB?
It measures 77.5 × 50.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Sdb use?
68 parts, built around the BAT43, BUK7880-55A-VB and PEC12R-4225F-S0024. 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 Sdb KiCad files?
From the 0x007E/sdb repository on GitHub, at the commit this page was made from: the board is pcb/SDB.kicad_pcb and its schematic pcb/SDB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Sdb design in my own project?
Its repository states no licence, so its author keeps all rights: ask 0x007E before reusing the design.
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