4 layers37.6 × 37.6 mm
Niko-4-6-way button
sillevl/spha-btnn-hardware
Revised SPHA Niko-compatible button module hardware.
71 parts
4 layers29 × 29 mm
Spha BTNU
sillevl/spha-btnu-hardwareOpen the .kicadpro file in KiCad. The design includes files originating from an older KiCad workflow; review schematic links, footprints, design rules, zones, and manufacturing outputs after any conversion or upgrade.
- Size
- 29 × 29 mm
- Copper layers
- 4
- Thickness
- 1.59 mm
- Parts
- 57
- Nets
- 56
- Pads
- 198
- Tracks, vias
- 583, 85
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 9 Sep 2026
- Updated
- 10 Sep 2026
Overview
Spha BTNU is an open-source printed circuit board by sillevl, from the sillevl/spha-btnu-hardware repository on GitHub. It is a 4-layer board of 29 × 29 mm with 57 parts on 56 nets, routed with 583 tracks and 85 vias.
It is built around the SN65HVD230D, TPS62175DQC and PESD2CAN, with the B5819W among its other parts. Its parts include 17 capacitors, 14 resistors, 7 ICs, 3 diodes and 3 connectors. It belongs with the STM32 boards of this library.
Main components
4
SN65HVD230D
SOIC-8-40℃~+85℃ 1 17mA 1Mbps 370uA 3V~3.6V CAN Transceiver Low-power mode、Wake-up function、ESD protection、Thermal shutdown protection、Bus fault protection、Hot-swap protection SOIC-8 CAN Transceivers ROHSTexas InstrumentsCAN Transceivers
TPS62175DQC
SON104.75-28VDC to 1-6VDC, 500mA Step-Down Converter with Sleep ModeTexas InstrumentsUncategorised
PESD2CAN
SOT-23-55℃~+150℃ 1nA 2 230W@8/20us 24V 25pF 28V 41V 5A@8/20us Bidirectional ESD IEC 61000-4-2、IEC 61000-4-5 SOT-23 ESD and Surge Protection (TVS/ESD) ROHSNexperiaESD And Surge Protection (TVS/ESD)
B5819W
SOD-123-55℃~+125℃ 1.5A 1mA@40V 25A 40V 600mV@1A Standalone SOD-123 Schottky Diodes ROHSMDDSchottky Diodes
README
README.mdSPHA BTNU hardware
SPHA universal button module hardware.
Design files
spha-BTNU.kicad_pro— KiCad projectspha-BTNU.kicad_sch— top-level schematicspha-BTNU.kicad_pcb— PCB layoutmodels/— project-specific 3D and mechanical models
Working with the project
Open the .kicad_pro file in KiCad. The design includes files originating from an older KiCad workflow; review schematic links, footprints, design rules, zones, and manufacturing outputs after any conversion or upgrade.
KiCad source files and project-specific libraries are the source of truth. Generated BOM, Gerber, assembly, and fabrication-house outputs are excluded from the repository; regenerate and verify them before manufacturing.
Repository notes
Temporary KiCad state, locks, autosaves, and backup directories are excluded by .gitignore. Board revision, tested KiCad version, manufacturing revision, and hardware/firmware compatibility still need to be recorded when provenance is confirmed.
Parts
57| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C2, C5, C7, C8, C9, C10, C13, C14, C15, C16 |
| 9 | 10k | Resistor_SMD:R_0402_1005Metric | R2, R4, R6, R7, R8, R9, R10, R11, R13 |
| 2 | 10uF | Capacitor_SMD:C_0805_2012Metric | C11, C17 |
| 2 | 6pF | Capacitor_SMD:C_0402_1005Metric | C3, C4 |
| 2 | Ferrite_Bead_Small | Diode_SMD:D_0805_2012Metric | FB1, FB2 |
| 2 | Fiducial | Fiducial:Fiducial_0.75mm_Mask1.5mm | FID1, FID2 |
| 1 | 100nF | Capacitor_SMD:C_0805_2012Metric | C6 |
| 1 | 10K | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | 10uH | Inductor_SMD:L_Taiyo-Yuden_MD-5050 | L1 |
| 1 | 150K | Resistor_SMD:R_0402_1005Metric | R15 |
| 1 | 1K | Resistor_SMD:R_0402_1005Metric | R3 |
| 1 | 200k | Resistor_SMD:R_0402_1005Metric | R12 |
| 1 | 22uF | Capacitor_SMD:C_0805_2012Metric | C12 |
| 1 | 24AA02-OT | Package_TO_SOT_SMD:SOT-23-5 | U6 |
| 1 | 787K | Resistor_SMD:R_0402_1005Metric | R14 |
| 1 | B5819W | Diode_SMD:D_SOD-123 | D2 |
| 1 | Conn_01x04 | footprints:CONN_1824653 | J4 |
| 1 | Conn_02x05_Odd_Even | Connector_PinHeader_1.27mm:PinHeader_2x05_P1.27mm_Vertical | J1 |
| 1 | Conn_02x08_Top_Bottom | niko-4-6-way-button:Wirepads | J2 |
| 1 | Crystal | Crystal:Crystal_SMD_MicroCrystal_CC7V-T1A-2Pin_3.2x1.5mm | Y1 |
| 1 | D_TVS | Diode_SMD:D_SMB | D1 |
| 1 | G*** | kibuzzard-63AEF0A2 | kibuzzard-63AEF0A2 |
| 1 | G*** | kibuzzard-63AEF3F0 | kibuzzard-63AEF3F0 |
| 1 | G*** | kibuzzard-63AEF468 | kibuzzard-63AEF468 |
| 1 | G*** | kibuzzard-63AEF094 | kibuzzard-63AEF094 |
| 1 | G*** | kibuzzard-63AEF3FB | kibuzzard-63AEF3FB |
| 1 | G*** | kibuzzard-63AEF45B | kibuzzard-63AEF45B |
| 1 | G*** | kibuzzard-63AEF4C9 | kibuzzard-63AEF4C9 |
| 1 | LED | LED_SMD:LED_0603_1608Metric | LED1 |
| 1 | MCP1700-3302E_SOT23 | Package_TO_SOT_SMD:SOT-23 | U5 |
| 1 | PESD2CAN | Package_TO_SOT_SMD:SOT-23 | U7 |
| 1 | SN65HVD230 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | STM32L432KCUx | Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.45x3.45mm | U2 |
| 1 | TLC59108xPW | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U1 |
| 1 | TPS62175DQC | Package_SON:WSON-10-1EP_2x3mm_P0.5mm_EP0.84x2.4mm_ThermalVias | U4 |
Questions
How big is the Spha BTNU PCB?
It measures 29 × 29 mm and has 4 copper layers, 1.59 mm thick.
What parts does the Spha BTNU use?
57 parts, built around the SN65HVD230D, TPS62175DQC, PESD2CAN and B5819W. 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 Spha BTNU KiCad files?
From the sillevl/spha-btnu-hardware repository on GitHub, at the commit this page was made from: the board is spha-BTNU.kicad_pcb and its schematic spha-BTNU.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Spha BTNU design in my own project?
Its repository states no licence, so its author keeps all rights: ask sillevl before reusing the design.
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