4 layers95.3 × 56.5 mm
2 layers87.6 × 61 mm
- Size
- 87.6 × 61 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 42
- Nets
- 46
- Pads
- 144
- Tracks, vias
- 373, 42
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 12 Sep 2026
- Updated
- 12 Sep 2026
Overview
259 PCB is an open-source printed circuit board by TheodorePriceParsons, from the TheodorePriceParsons/PCB-continuous-servo repository on GitHub. It is a 2-layer board of 87.6 × 61 mm with 42 parts on 46 nets, routed with 373 tracks and 42 vias.
It is built around the 74HC14, 74HCT273D and 74LS393P-E, with the 4610X-R2R-103LF and EE-SX1041 among its other parts. Its parts include 13 capacitors, 10 resistors, 5 ICs, 2 transistors and 1 diode.
Main components
5
74HC14
SOP-14-40℃~+85℃ 1.9V、3.98V、4.4V、5.48V、5.9V 100mV、260mV、260mV 20uA 25ns@4.5V,50pF 2V~6V 6 74HC Noise suppression function Schmitt trigger SOP-14 Inverters ROHSJSMSEMIInverters
74HCT273D
SOIC-20-300mil-40℃~+125℃ 12ns 3.5pF 30ns@4.5V,50pF 36MHz 3ns 4.5V~5.5V 4mA 5.2mA 74HCT Series 8 8uA D-Type Reset Rising Edge SOIC-20-300mil Flip Flops ROHSNexperiaFlip Flops
74LS393P-E
DIP-14-20℃~+75℃ 2 35MHz 4 4.75V~5.25V 400mW 40ns@5V,15pF 74LS Binary Counter Reset function DIP-14 Counters, Dividers ROHSRenesas ElectronicsCounters, Dividers
4610X-R2R-103LF
SIP-10-2.54mm10 10kΩ 125mW 16 ±100ppm/℃ ±2% SIP-10-2.54mm Resistor Networks, Arrays ROHSBournsResistor Networks & Arrays
EE-SX1041
DIP-4-25℃~+95℃ 0.5mm 1.2V 10mm 14mm 20mA 2nA 30V 4us 4us 5mm 940nm DIP-4 Photointerrupters - Slot Type - Transistor Output ROHSOmronPhotointerrupters - Slot Type - Transistor Output
Parts
42| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | TestPoint | TestPoint:TestPoint_THTPad_1.5x1.5mm_Drill0.7mm | TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8 |
| 7 | 100nF | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C1, C4, C5, C6, C7, C10, C11 |
| 2 | 100uF | Capacitor_THT:C_Disc_D9.0mm_W5.0mm_P5.00mm | C12, C13 |
| 2 | 11k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R3 |
| 2 | 1nF | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C2, C9 |
| 2 | LM741 | Package_DIP:DIP-8_W7.62mm_Socket | U7, U8 |
| 1 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4 |
| 1 | 10k | Potentiometer_THT:Potentiometer_Bourns_3296W_Vertical | RV1 |
| 1 | 1M | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R5 |
| 1 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1 |
| 1 | 1uF | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C8 |
| 1 | 22k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R10 |
| 1 | 330R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R8 |
| 1 | 3W | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R7 |
| 1 | 4.7k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R9 |
| 1 | 4610X-R2R-103LF | Resistor_THT:R_Array_SIP10 | R1 |
| 1 | 47pF | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C3 |
| 1 | 680k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R6 |
| 1 | 74HC14 | Package_DIP:DIP-14_W7.62mm | U3 |
| 1 | 74HCT273 | Package_DIP:DIP-20_W7.62mm | U2 |
| 1 | 74LS393 | Package_DIP:DIP-14_W7.62mm | U1 |
| 1 | AD3 | Connector_PinSocket_2.00mm:PinSocket_1x04_P2.00mm_Vertical | J1 |
| 1 | EE-SX1041 | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | Q2 |
| 1 | MJF122G | GS_SO:TO-220-3_L10.0-W4.5-P2.54-L | Q1 |
| 1 | Motor_DC | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | M1 |
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Questions
How big is the 259 PCB PCB?
It measures 87.6 × 61 mm and has 2 copper layers, 1.6 mm thick.
What parts does the 259 PCB use?
42 parts, built around the 74HC14, 74HCT273D, 74LS393P-E and 4610X-R2R-103LF. 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 259 PCB KiCad files?
From the TheodorePriceParsons/PCB-continuous-servo repository on GitHub, at the commit this page was made from: the board is hardware/259_PCB.kicad_pcb and its schematic hardware/259_PCB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the 259 PCB design in my own project?
Its repository states no licence, so its author keeps all rights: ask TheodorePriceParsons before reusing the design.