

Nixie
A Nixie Clock with Z5600M and ESP32
- Size
- 240 × 70 mm
- Copper layers
- 4
- Thickness
- 1.61 mm
- Parts
- 324
- Nets
- 374
- Pads
- 1,116
- Tracks, vias
- 1,487, 110
- Pours
- 9
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 16 Sep 2024
- Updated
- 15 Oct 2026
Overview
Nixie is an open-source printed circuit board by Synthron, from the Synthron/Nixie repository on GitHub. It is a 4-layer board of 240 × 70 mm with 324 parts on 374 nets, routed with 1,487 tracks and 110 vias.
It is built around the ESP32-WROOM-32, PCF8574T and IR2153PBF, with the MC34063AP, 74HC595 and AMS1117-3.3 among its other parts. Its parts include 124 resistors, 88 transistors, 40 capacitors, 20 ICs and 14 connectors. It belongs with the lEDs and displays boards and the ESP32 boards of this library.
Main components
12ESP32-WROOM-32
SMD,18x25.5mm-40℃~+85℃ -98dBm 2.4GHz 2.7V~3.6V 20dBm Bluetooth4.2 ESP32-DOWDQ6 UART、SDIO、SPI、I2C、GPIO、PWM、ADC、DAC SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi ModulesPCF8574T
SOP-16-300mil-40℃~+85℃ 100kHz 10uA 2.5V~6V 25mA 300uA 8 8 Cascading and address extension、Built-in LED driver I2C Interrupt Output Open-drain SOP-16-300mil I/O Expanders ROHSHGSEMII/O ExpandersIR2153PBF
PDIP-8-40℃~+125℃ 10V~15.6V 2 45ns 500uA 80ns Half-Bridge MOSFET Under Voltage Protection PDIP-8 Gate Drivers ROHSInfineon TechnologiesGate DriversMC34063AP
PDIP-80℃~+70℃@(TA) 1 1.25V~40V 1.5A 100kHz 3V~40V Adjustable Boost、Buck、Inverting Buck、Boost Built-in No PDIP-8 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters74HC595
SOP-16-40℃~+85℃ 1 100ns@5V,50pF 10MHz 2V~6V 74HC 8 Serial-to-Serial or Parallel Tri-State SOP-16 Shift Registers ROHSGRShift RegistersAMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsDS1302+
DIP-80℃~+70℃ 1nA 2V~5.5V 300nA Backup power management and battery charging、InsideSRAM/NVRAM External No SPI DIP-8 Real Time Clocks ROHSMaxim Integrated (Analog Devices)Real Time ClocksUSBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)MPSA42
TO-921 NPN 1.5W 100nA 300V 40 500mA 500mV 50MHz 6V NPN TO-92 Bipolar (BJT) ROHSFoshan Blue Rocket ElecBipolar (BJT)MPSA92
TO-921 PNP 1.5W 250nA 300V 40 500mA 500mV 50MHz 5V PNP TO-92 Bipolar (BJT) ROHSFoshan Blue Rocket ElecBipolar (BJT)UF4007
DO-41-50℃~+150℃ 1.7V@1A 1A 1kV 30A 5uA@1kV 75ns DO-41 Fast Recovery / High Efficiency Diodes ROHSMDDFast Recovery / High Efficiency DiodesIRF740
TO-220-55℃~+175℃ 1 N-channel 1.162nF 100W 10A 17pF 32nC@10V 400V 4V 500mΩ@10V N-Channel TO-220 MOSFETs ROHSMinosMOSFETs
README
README.mdNixie
A Nixie Clock with Z5600M and ESP32
Parts
324| Qty | Value | Footprint | References |
|---|---|---|---|
| 72 | MPSA42 | Package_TO_SOT_THT:TO-92 | Q302, Q303, Q304, Q305, Q306, Q307, Q308, Q309, Q310, Q311, Q312, Q313, Q314, Q315, Q316, Q317 +56 |
| 71 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R110, R114, R305, R306, R307, R308, R309, R310, R311, R312, R313, R314, R315, R316, R317, R318 +55 |
| 15 | 100n | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C106, C107, C108, C109, C110, C301, C302, C303, C304, C305, C306, C307, C308, C410, C411 |
| 9 | 220k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R3, R301, R321, R325, R345, R365, R369, R390, R395 |
| 8 | 100k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R302, R322, R342, R346, R366, R370, R392, R397 |
| 8 | 74HC595 | Package_DIP:DIP-16_W7.62mm | U301, U302, U303, U304, U305, U306, U307, U308 |
| 8 | MPSA92 | Package_TO_SOT_THT:TO-92 | Q301, Q319, Q337, Q339, Q357, Q359, Q377, Q379 |
| 8 | TestPoint | Connector_Pin:Pin_D1.0mm_L10.0mm | TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8 |
| 6 | 100n | Capacitor_SMD:C_0805_2012Metric | C5, C102, C104, C105, C407, C408 |
| 6 | 15k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R304, R324, R344, R348, R368, R388 |
| 6 | 4k7 | Resistor_SMD:R_0805_2012Metric | R4, R102, R103, R104, R105, R107 |
| 5 | 4µ7 | Capacitor_SMD:C_0805_2012Metric | C6, C101, C103, C406, C409 |
| 4 | 150k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R389, R391, R394, R396 |
| 4 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R303, R343, R367, R393 |
| 4 | 22µ 250V | Capacitor_THT:CP_Radial_D10.0mm_P5.00mm | C1, C2, C3, C4 |
| 4 | SW_SPST | Button_Switch_THT:SW_SPST_Omron_B3F-315x_Angled | SW102, SW103, SW104, SW105 |
| 4 | UF4007 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D401, D402, D403, D405 |
| 3 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R112, R115, R403 |
| 3 | 1n | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C112, C113, C415 |
| 3 | IRF740 | Package_TO_SOT_THT:TO-220-3_Vertical | Q401, Q402, Q403 |
| 3 | PCF8574 | Package_DIP:DIP-16_W7.62mm | U101, U104, U106 |
| 2 | 100 0.1% | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R111, R113 |
| 2 | 10p | Capacitor_SMD:C_0805_2012Metric | C7, C8 |
| 2 | 2 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R401, R404 |
| 2 | 22R | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 2 | 32.768 | Crystal:Crystal_SMD_MicroCrystal_MS1V-T1K | Y1, Y101 |
| 2 | 3k3 | Resistor_SMD:R_0805_2012Metric | R108, R109 |
| 2 | BC546 | Package_TO_SOT_THT:TO-92 | Q103, Q104 |
| 2 | BC846 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2 |
| 2 | Sec_Dec | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J307, J308 |
| 1 | 0R461 | Resistor_THT:R_Axial_DIN0614_L14.3mm_D5.7mm_P5.08mm_Vertical | R402 |
| 1 | 100µ | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C401 |
| 1 | 10k | Resistor_THT:R_Array_SIP5 | RN1 |
| 1 | 10n | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C419 |
| 1 | 180 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R405 |
| 1 | 1F 3V6 | Eigene:CP_Radial_D21.5mm_P5.00mm | C111 |
| 1 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D404 |
| 1 | 1k | Resistor_SMD:R_0805_2012Metric | R101 |
| 1 | 1k3 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R408 |
| 1 | 1µ | Capacitor_THT:C_Rect_L18.0mm_W8.0mm_P15.00mm_FKS3_FKP3 | C414 |
| 1 | 200p | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C418 |
| 1 | 74µH | Eigene:FT50-43 | L401 |
| 1 | 91k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R406 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U402 |
| 1 | BC556 | Package_TO_SOT_THT:TO-92 | Q404 |
| 1 | Barrel_Jack | Connector_BarrelJack:BarrelJack_Horizontal | J401 |
| 1 | CP2102N-Axx-xQFN28 | Package_DFN_QFN:QFN-28-1EP_5x5mm_P0.5mm_EP3.35x3.35mm_ThermalVias | U103 |
| 1 | Conn_01x10 | Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Vertical | J102 |
| 1 | DCF77 Antenna | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J105 |
| 1 | DS1302+ | Package_DIP:DIP-8_W7.62mm | U107 |
| 1 | ESP32-WROOM-32 | RF_Module:ESP32-WROOM-32 | U105 |
| 1 | Hr_One | Connector_PinHeader_2.54mm:PinHeader_1x12_P2.54mm_Vertical | J305 |
| 1 | Hr_Ten | Connector_PinHeader_2.54mm:PinHeader_1x12_P2.54mm_Vertical | J306 |
| 1 | IR2153 | Package_DIP:DIP-8_W7.62mm | U403 |
| 1 | LED | LED_THT:LED_D3.0mm | D101 |
| 1 | LOGO | TheBrutzlers_Lib:approved_theBrutzler | G*** |
| 1 | LOGO | Eigene:logo | G*** |
| 1 | MC34063AP | Package_DIP:DIP-8_W7.62mm | U404 |
| 1 | MCP3426Axx-xSN | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U108 |
| 1 | Min_One | Connector_PinHeader_2.54mm:PinHeader_1x12_P2.54mm_Vertical | J303 |
| 1 | Min_Ten | Connector_PinHeader_2.54mm:PinHeader_1x12_P2.54mm_Vertical | J304 |
| 1 | PT100 1 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J103 |
| 1 | PT100 2 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J104 |
| 1 | R_Network08 | Resistor_THT:R_Array_SIP9 | RN101 |
| 1 | SMB-001 | Eigene:SMB-002 | FB101 |
| 1 | SW_DIP_x08 | Button_Switch_THT:SW_DIP_SPSTx08_Piano_CTS_Series194-8MSTN_W7.62mm_P2.54mm | SW101 |
| 1 | SY317 | Package_TO_SOT_THT:TO-220-3_Vertical | U401 |
| 1 | Sec_One | Connector_PinHeader_2.54mm:PinHeader_1x12_P2.54mm_Vertical | J301 |
| 1 | Sec_Ten | Connector_PinHeader_2.54mm:PinHeader_1x12_P2.54mm_Vertical | J302 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U102 |
| 1 | USB_B | Connector_USB:USB_B_Lumberg_2411_02_Horizontal | J101 |
| 1 | Val** | Eigene:ladder_4 | Ref** |
The 314 most common of 324 parts.
Questions
How big is the Nixie PCB?
It measures 240 × 70 mm and has 4 copper layers, 1.61 mm thick.
What parts does the Nixie use?
324 parts, built around the ESP32-WROOM-32, PCF8574T, IR2153PBF and MC34063AP. 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 KiCad files?
From the Synthron/Nixie repository on GitHub, at the commit this page was made from: the board is Hardware/PCB/nixie.kicad_pcb and its schematic Hardware/PCB/driver.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Nixie design in my own project?
Its repository states no licence, so its author keeps all rights: ask Synthron before reusing the design.
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