4 layers90.3 × 94.6 mm
4 layers203.1 × 155.8 mm
Nixie 2025 v3
moro696/nixie-clock1here i will post documentation for the nixie clock project.
- Size
- 203.1 × 155.8 mm
- Copper layers
- 4
- Thickness
- 0.62 mm
- Parts
- 147
- Nets
- 154
- Pads
- 565
- Tracks, vias
- 1,835, 409
- Pours
- 42
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 30 May 2026
- Updated
- 30 May 2026
Overview
Nixie 2025 v3 is an open-source printed circuit board by moro696, from the moro696/nixie-clock repository on GitHub, published under the GPL-3.0 licence. It is a 4-layer board of 203.1 × 155.8 mm with 147 parts on 154 nets, routed with 1,835 tracks and 409 vias.
It is built around the FUSB302B11MPX, LMR16010PDDA and ADUM151N1BRZ, with the HV57908PG-G, ASMT-YTD9-0AA02 and 2N7002 K72 among its other parts. Its parts include 69 resistors, 25 capacitors, 15 diodes, 8 ICs and 6 transistors. It belongs with the lEDs and displays boards and the STM32 boards of this library.
Main components
12
FUSB302B11MPX
MLP-14-40℃~+85℃ 25uA 3.3V、5V 560mA Controller USB 3.1 MLP-14 USB Converters ROHSonsemiUSB Converters
LMR16010PDDA
SO-8-EP-40℃~+125℃@(TJ) 1 1A 2.5MHz 4.3V~60V 40uA 800mV~50V Adjustable Buck Buck Built-in No SO-8-EP DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
ADUM151N1BRZ
SOIC-16-40℃~+125℃ 1 1.7V~5.5V 1.7V~5.5V 100kV/us 150Mbps 3000 4 SOIC-16 Digital Isolators ROHSAnalog DevicesDigital Isolators
HV57908PG-G
FQFP-80(14x20)-40℃~+85℃ 4.5V~5.5V 64 70ns@5V,15pF 8MHz Push-Pull Serial-to-Parallel FQFP-80(14x20) Shift Registers ROHSMicrochip TechnologyShift RegistersASMT-YTD9-0AA02
SMD3528-6P-40℃~+100℃ 1.8mm 120° 2.8mm 3.4mm B:465nm~475nm、R:617nm~627nm、G:525nm~537nm B:465nm、R:630nm、G:522nm Discrete Diode R:125mW、G:90mW、B:90mW R:20mA、G:20mA、B:20mA White Lens SMD3528-6P RGB LEDs ROHSBroadcom LimitedRGB LEDs
2N7002 K72
SOT-23-55℃~+150℃ 1 N-channel 1V 20pF 300mA 350mW 3Ω@10V 4.4pF 60V SOT-23 MOSFETs ROHSJUXINGMOSFETs
ESD752DBZ
SOT-23-3UncategorisedTexas InstrumentsMMBT5551
SOT-23-55℃~+150℃ 1 NPN 160V 200 200mV 300MHz 300mW 50nA 600mA 6V NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)BAT54C
SOT-231 Pair Common Cathode 200mA 2uA@25V 30V 600mA 800mV@100mA SOT-23 Schottky Diodes ROHSNexperiaSchottky DiodesLPS6235-123MRC
SMD,6.2x6.2mm1.75A 110mΩ 12uH 2.3A AEC-Q200 Magnetic Shielded Inductor ±20% SMD,6.2x6.2mm Power Inductors ROHSCoilcraftPower Inductors
MS621FE-FL11E
UncategorisedSeiko InstrumentsQT1C-32.768KDZB-T
SMD1610-2P-40℃~+85℃ 32.768kHz 6pF 90kΩ ±20ppm SMD1610-2P Crystals ROHSQST Products, LLCCrystals
README
README.mdThis is the first version for the hardware schematic of the nixie clock project. There are 3 sheets:
- microcontroler & drivers
- power supply
- tube & led side
Here i have posted a seeries of videos where i describe how the circuit works and various stages of the design:
Enjoy!
Parts
147| Qty | Value | Footprint | References |
|---|---|---|---|
| 47 | 0603 | moroLib2:RES0603new | R1, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R25, R26, R31, R32 +31 |
| 21 | 0805 | moroLib2:RES0805new | R2, R3, R4, R21, R22, R27, R28, R29, R30, R34, R37, R50, R52, R53, R55, R56 +5 |
| 20 | 0603 | moroLib2:CAP0603new | C1, C2, C3, C4, C5, C10, C13, C17, C18, C25, C28, C29, C30, C31, C32, C38 +4 |
| 6 | ASMT-YTD9-0AA02 | moroLib2:ASMT-YTD9-0AA02 | Led1, Led2, Led3, Led4, Led5, Led6 |
| 4 | Header 2 | Miscellaneous Connectors:HDR1X2 | P1, P2, P3, P4 |
| 4 | IN-3 | moroLib2:IN-3tube | Tub7, Tub8, Tub9, Tub10 |
| 4 | testpoint | moroLib2:solderPad | RTC_out, SWCLK, SWDIO, SWRST |
| 2 | 0805 | moroLib2:CAP0805new | C12, C16 |
| 2 | 2N7002K-7 | moroLib2:SOT23 | Q2, Q6 |
| 2 | <b>LEDs</b> Standard schematic elements and footprints for 5mm, 3mm, 1206, and 0603 sized LEDs. 5mm - Spark Fun Electronics SKU : COM-00529 (and others) | pixhawk2:0603-LED | LED9, LED10 |
| 2 | ES1J+ | moroLib2:ES1J+ | D11, D12 |
| 2 | ESD752DBZ | moroLib2:SOT23 | D7, D8 |
| 2 | MMBT5551 | moroLib2:SOT23 | Q5, Q7 |
| 1 | 1000u 6.3v | moroLib2:4u7400v | C11 |
| 1 | 1210 | moroLib2:RES1210 | R24 |
| 1 | 22u25V | moroLib2:22u25VSMD | C37 |
| 1 | 4u7u 400VDC | moroLib2:4u7400v | C15 |
| 1 | ADUM151N1BRZ | moroLib2:SOIC16 | U8 |
| 1 | BAT54C | moroLib2:SOT23 | D1 |
| 1 | BZX384-C75,115 | moroLib2:ES1J+ | D6 |
| 1 | DO5010H-224MLD | moroLib2:DO5010H-224MLD | L4 |
| 1 | FUSB302B11MPX | moroLib2:FUSB302B11MPX | U2 |
| 1 | HV57908PG-G | moroLib2:PQFP80_20X14MC_MCH-M | U7 |
| 1 | Header 4 | Miscellaneous Connectors:HDR1X4 | P9 |
| 1 | LM3478MA/NOPB | moroLib2:M08A | U4 |
| 1 | LMR16010PDDA | moroLib2:DDA0008E_N | U10 |
| 1 | LPS6235-123MRC | moroLib2:LPS6235-123MRC | L3 |
| 1 | MCP1701AT-3302I/MB | moroLib2:SOT-89_3MC_MCH | U3 |
| 1 | MS621FE-FL11E | moroLib2:MS621FE-FL11E - duplicate | BAT1 |
| 1 | PCA9685BS-118 | moroLib2:QFN65P600X600X60_HS-29N | U1 |
| 1 | QT1C-32.768KDZB-T | moroLib2:Quartz1.6x0.8 | X1 |
| 1 | RJ1U330AAFRGTL | moroLib2:DPAK254P1310X470-3N | Q4 |
| 1 | SI4425DDY-T1-GE3 | moroLib2:SO08 | Q3 |
| 1 | SS2PH10 | moroLib2:ES1J+ | D10 |
| 1 | ST STM32F101/103 48pin LQFP | pixhawk2:TQFP48 | IC1 |
| 1 | hours digit 1 [0..9] | moroLib2:IN-12 soket | Tub5 |
| 1 | hours digit 2 [0..2] | moroLib2:IN-12 soket | Tub6 |
| 1 | minutes digit1 [0...9 | moroLib2:IN-12 soket | Tub3 |
| 1 | minutes digit2 [0..5] | moroLib2:IN-12 soket | Tub4 |
| 1 | seconds digit1 [0...9] | moroLib2:IN-12 soket | Tub1 |
| 1 | seconds digit2 [0..5] | moroLib2:IN-12 soket | Tub2 |
| 1 | smd_4tp_small_input | moroLib2:smd_4_tp_small_pitch_input | P6 |
Questions
How big is the Nixie 2025 v3 PCB?
It measures 203.1 × 155.8 mm and has 4 copper layers, 0.62 mm thick.
What parts does the Nixie 2025 v3 use?
147 parts, built around the FUSB302B11MPX, LMR16010PDDA, ADUM151N1BRZ and HV57908PG-G. 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 Nixie 2025 v3 KiCad files?
From the moro696/nixie-clock repository on GitHub, at the commit this page was made from: the board is Nixie Clock - PCB&SCH/nixie_2025_v3.kicad_pcb and its schematic Nixie Clock - PCB&SCH/mcu_ctrl_v3.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Nixie 2025 v3 design in my own project?
Its repository publishes it under the GPL-3.0 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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