2 layers55 × 25.5 mm
2 layers60 × 43 mm
Nixie 2
christianjanev/nixie- Size
- 60 × 43 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 27
- Nets
- 53
- Pads
- 140
- Tracks, vias
- 184, 8
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 30 Jun 2026
- Updated
- 19 Oct 2026
Overview
Nixie 2 is an open-source printed circuit board by christianjanev, from the christianjanev/nixie repository on GitHub. It is a 2-layer board of 60 × 43 mm with 27 parts on 53 nets, routed with 184 tracks and 8 vias.
It is built around the ESP32-S3-MINI-1-N8, AP2112K-3.3 and IRF840APBF, with the UF4004 among its other parts. Its parts include 10 resistors, 4 capacitors, 3 ICs, 1 diode and 1 transistor. It belongs with the lEDs and displays boards and the ESP32 boards of this library.
Main components
4
ESP32-S3-MINI-1-N8
SMD-104.5dBm -40℃~+85℃ 2.4GHz 20.5dBm 330mA 3V~3.6V 97mA Bluetooth5.0 ESP32-S3FN8 Chip On-board PCB Antenna UART、SPI、I2C、I2S、USB SMD WiFi Modules ROHSEspressif SystemsWiFi Modules
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
IRF840APBF
TO-220AB-55℃~+150℃ 1 N-channel 1.018nF 125W 155pF 38nC@10V 4V 500V 850mΩ@10V 8A 8pF N-Channel TO-220AB MOSFETs ROHSVishay IntertechnologyMOSFETs
UF4004
DO-41-55℃~+175℃ 10uA@400V 1A 1V@1A 30A 400V Independent DO-41 Diodes - General Purpose ROHSLGEDiodes - General Purpose
Parts
27| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole_Pad | MountingHole:MountingHole_2.2mm_M2_Pad | H2, H3, H4, H5 |
| 3 | 10k | Resistor_SMD:R_1206_3216Metric | R1, R3, R4 |
| 2 | 1nF | Capacitor_SMD:C_0805_2012Metric | C2, C3 |
| 2 | 20k | Resistor_SMD:R_1206_3216Metric | R2, R10 |
| 1 | 0.22 | Resistor_SMD:R_2512_6332Metric | R6 |
| 1 | 10 | Resistor_SMD:R_1206_3216Metric | R5 |
| 1 | 100nF | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 100uH | Inductor_SMD:L_Sunlord_MWSA1003S | L1 |
| 1 | 10uF | Capacitor_THT:C_Radial_D10.0mm_H12.5mm_P5.00mm | C4 |
| 1 | 20V | USB_PD_Connector:USB C PD Deceiver | V1 |
| 1 | 220k | Resistor_SMD:R_1206_3216Metric | R9 |
| 1 | 51k | Resistor_SMD:R_1206_3216Metric | R7 |
| 1 | 680k | Resistor_SMD:R_1206_3216Metric | R8 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U1 |
| 1 | Conn_01x09_Pin | Connector_PinSocket_2.54mm:PinSocket_1x09_P2.54mm_Vertical | J1 |
| 1 | DOWNLOAD | Button_Switch_THT:SW_PUSH_6mm | SW1 |
| 1 | ESP32-S3-MINI-1 | RF_Module:ESP32-S2-MINI-1 | U3 |
| 1 | IRF840A | Package_TO_SOT_THT:TO-220-3_Vertical | Q1 |
| 1 | UC3843_SOIC8 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | UF4004 | Diode_SMD:D_SMA | D1 |
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Questions
How big is the Nixie 2 PCB?
It measures 60 × 43 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Nixie 2 use?
27 parts, built around the ESP32-S3-MINI-1-N8, AP2112K-3.3, IRF840APBF and UF4004. 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 2 KiCad files?
From the christianjanev/nixie repository on GitHub, at the commit this page was made from: the board is nixie_2.kicad_pcb and its schematic breakout.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Nixie 2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask christianjanev before reusing the design.