4 layers19 × 100 mm
4 layers19 × 100 mm
Binaryclkdiv
xdylanm/binary-clock-dividerA simple binary clock divider based on the 4024.
- Size
- 19 × 100 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 74
- Nets
- 57
- Pads
- 200
- Tracks, vias
- 333, 56
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 19 Aug 2026
- Updated
- 30 Oct 2026
Overview
Binaryclkdiv is an open-source printed circuit board by xdylanm, from the xdylanm/binary-clock-divider repository on GitHub, published under the MIT licence. It is a 4-layer board of 19 × 100 mm with 74 parts on 57 nets, routed with 333 tracks and 56 vias.
It is built around the TL072, BC847 and 1N4148W, with the B140-E3 among its other parts. Its parts include 34 resistors, 12 capacitors, 10 diodes, 9 connectors and 4 ICs.
Main components
4
TL072
SOP-8-18V~18V 0℃~+70℃ 1.4mA 1.5nA 10V/us 10mV 2 2.5nA 3MHz 85dB SOP-8 Operational Amplifier ROHSGcoreOperational Amplifier
BC847
SOT-231 NPN 100MHz 100mA 100nA 110 200mW 45V 500mV 6V NPN SOT-23 Bipolar (BJT) ROHSShikuesBipolar (BJT)
1N4148W
SOD-123150mA 1A 1V@50mA 1uA@75V 400mW 4ns 75V Independent SOD-123 Switching Diodes ROHSSTMicroelectronicsSwitching Diodes
B140-E3
SMA(DO-214AC)-65℃~+150℃ 1 Independent 1A 200uA@40V 30A 40V 520mV@1A SMA(DO-214AC) Schottky Diodes ROHSVishay IntertechnologySchottky Diodes
README
README.mdBinary Clock Divider
A simple binary clock divider based on the 4024.
Parts
74| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 100k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R4, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22 |
| 8 | 100n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2, C3, C4, C5, C6, C9, C10 |
| 8 | AudioJack2_SwitchT | AudioJacks:Jack_3.5mm_QingPu_WQP-PJ301M-12_Vertical_Slim | J1, J2, J3, J4, J5, J6, J7, J8 |
| 6 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R23, R25, R27, R29, R31, R33 |
| 6 | 4k7 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R24, R26, R28, R30, R32, R34 |
| 6 | LED | LED_THT:LED_D3.0mm | D3, D4, D5, D6, D7, D8 |
| 3 | BC847 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6, R8 |
| 2 | 10u | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C7, C8 |
| 2 | 1M | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R5 |
| 2 | 1N4148W | Diode_SMD:D_SOD-123 | D1, D2 |
| 2 | 1u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C11, C12 |
| 2 | 22k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R7 |
| 2 | B140-E3 | Diode_SMD:D_SMA | D9, D10 |
| 2 | FerriteBead_Small | Inductor_SMD:L_0805_2012Metric_Pad1.05x1.20mm_HandSolder | FB1, FB2 |
| 1 | 4024 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U1 |
| 1 | Conn_02x05_Odd_Even | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | J9 |
| 1 | LDK320M5R | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U5 |
| 1 | TL072 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | TL074 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U3 |
Questions
How big is the Binaryclkdiv PCB?
It measures 19 × 100 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Binaryclkdiv use?
74 parts, built around the TL072, BC847, 1N4148W and B140-E3. 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 Binaryclkdiv KiCad files?
From the xdylanm/binary-clock-divider repository on GitHub, at the commit this page was made from: the board is hardware/binaryclkdiv/binaryclkdiv.kicad_pcb and its schematic hardware/binaryclkdiv/binaryclkdiv.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Binaryclkdiv design in my own project?
Its repository publishes it under the MIT 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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