6 layers
6 layers225.3 × 53.3 mm
Nixie clock
dalvador2/nixie_clock- Size
- 225.3 × 53.3 mm
- Copper layers
- 6
- Thickness
- 1.6 mm
- Parts
- 182
- Nets
- 278
- Pads
- 770
- Tracks, vias
- 1,255, 288
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 27 Sep 2024
- Updated
- 24 Mar 2025
Overview
Nixie clock is an open-source printed circuit board by dalvador2, from the dalvador2/nixie_clock repository on GitHub, published under the GPL-3.0 licence. It is a 6-layer board of 225.3 × 53.3 mm with 182 parts on 278 nets, routed with 1,255 tracks and 288 vias.
It is built around the PCA9685BS, LT3759EMSE#TRPBF and SKRTLAE010. Its parts include 79 ICs, 78 resistors, 8 capacitors, 3 switches and 1 diode. It belongs with the lEDs and displays boards and the RP2040 boards of this library.
Main components
3
PCA9685BS
QFN-28-EP(6x6)QFN-28-EP(6x6) LED Drivers ROHSNXP SemiconductorsLED Drivers
LT3759EMSE#TRPBF
MSOP-12-EP-0.65mm-40℃~+125℃@(TJ) 1 1.6V~42V 100kHz~1MHz 350uA Adjustable Boost、Buck-Boost Boost、SEPIC、Inverting External No MSOP-12-EP-0.65mm DC-DC Converters ROHSAnalog DevicesDC-DC Controllers
SKRTLAE010
SMD,4.5x3.4mm-40℃~+90℃ 1.63N 100,000 cycles 12V 3.3mm 3.4mm 4.5mm 50mA Round Button SMD(SMT) Tab SPST-NO Surface Mount, Right Angle SMD,4.5x3.4mm Tactile Switches ROHSALPSALPINETactile Switches
Parts
182| Qty | Value | Footprint | References |
|---|---|---|---|
| 72 | MSD42WT1G | footprints:SOT-323-3_2P2X1P35_ONS | U1, U2, U10, U11, U12, U16, U17, U18, U19, U20, U21, U22, U23, U24, U25, U26 +56 |
| 60 | 1K | Resistor_SMD:R_0603_1608Metric | R2, R10, R11, R12, R14, R15, R16, R17, R18, R20, R21, R22, R23, R24, R26, R27 +44 |
| 12 | 7K87 | Resistor_SMD:R_0603_1608Metric | R1, R7, R13, R19, R25, R31, R37, R43, R49, R55, R66, R73 |
| 6 | IN14 | Nixie_Stuff:IN14 | V1, V2, V3, V4, V5, V6 |
| 5 | PCA9685BS | Package_DFN_QFN:QFN-28-1EP_6x6mm_P0.65mm_EP4.25x4.25mm | U13, U15, U28, U41, U54 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_2.7mm_M2.5_DIN965_Pad | H1, H2, H3, H4 |
| 3 | SKRTLAE010 | SKRTLAE010:SW_SKRTLAE010 | S1, S2, S3 |
| 2 | 10u | Capacitor_SMD:C_1210_3225Metric | C1, C8 |
| 1 | 100n | Capacitor_SMD:C_1812_4532Metric | C7 |
| 1 | 100n | Capacitor_SMD:C_0805_2012Metric | C2 |
| 1 | 10m | Resistor_SMD:R_0805_2012Metric | R61 |
| 1 | 13K | Resistor_SMD:R_0603_1608Metric | R63 |
| 1 | 150n | Capacitor_SMD:C_0603_1608Metric | C4 |
| 1 | 1M6 | Resistor_SMD:R_0603_1608Metric | R62 |
| 1 | 20R | Resistor_SMD:R_0603_1608Metric | R64 |
| 1 | 2u2 | Capacitor_SMD:C_2220_5750Metric | C6 |
| 1 | 300K | Resistor_SMD:R_0603_1608Metric | R65 |
| 1 | 4u7 | Capacitor_SMD:C_0603_1608Metric | C5 |
| 1 | 560p | Capacitor_SMD:C_0603_1608Metric | C3 |
| 1 | 750312367 | 750312367:750312367 | T1 |
| 1 | 86K6 | Resistor_SMD:R_0603_1608Metric | R72 |
| 1 | Conn_01x06_Pin | Connector_Molex:Molex_KK-254_AE-6410-06A_1x06_P2.54mm_Vertical | J1 |
| 1 | D | Diode_SMD:D_SOD-123 | D1 |
| 1 | LT3759EMSE#TRPBF | LT3759EMSE:MSOP-12_MSE_LIT | U79 |
| 1 | PicoW | RPi_Pico:RPi_PicoW_SMD | U14 |
| 1 | Q_NMOS_GDS | Package_TO_SOT_SMD:LFPAK56 | Q1 |
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Questions
How big is the Nixie clock PCB?
It measures 225.3 × 53.3 mm and has 6 copper layers, 1.6 mm thick.
What parts does the Nixie clock use?
182 parts, built around the PCA9685BS, LT3759EMSE#TRPBF and SKRTLAE010. 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 clock KiCad files?
From the dalvador2/nixie_clock repository on GitHub, at the commit this page was made from: the board is pcb/nixie_clock/nixie_clock.kicad_pcb and its schematic pcb/nixie_clock/Nixie_Block.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Nixie clock 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).