4 layers27.9 × 63.5 mm
4 layers22.9 × 55.9 mm
Pt workshop
flpvsk/pt-workshop2- Size
- 22.9 × 55.9 mm
- Copper layers
- 4
- Thickness
- 4.69 mm
- Parts
- 67
- Nets
- 26
- Pads
- 111
- Tracks, vias
- 214, 18
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 17 Jan 2024
- Updated
- 11 Nov 2025
Overview
Pt workshop is an open-source printed circuit board by flpvsk, from the flpvsk/pt-workshop repository on GitHub. It is a 4-layer board of 22.9 × 55.9 mm with 67 parts on 26 nets, routed with 214 tracks and 18 vias.
It is built around the L78L05CZ and MMDT3904. Its parts include 16 capacitors, 10 resistors, 2 ICs, 2 connectors and 1 transistor.
Main components
2
L78L05CZ
TO-920℃~+125℃ 100mA 30V 40uV 49dB@(120Hz) 5V Fixed Over Temperature Protection、Short Circuit Protection Positive TO-92 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSSTMicroelectronicsPower Management - Specialized
MMDT3904
SOT-363-55℃~+150℃ 100 2 NPN 200mA 200mV 200mW 300MHz 40V 50nA 6V NPN SOT-363 Bipolar (BJT) ROHSDiodes IncorporatedBipolar (BJT)
Parts
67| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 10K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R202, R203, R204, R205, R208, R306 |
| 3 | 1u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C208, C209, C214 |
| 2 | 100n | Capacitor_SMD:CP_Elec_4x5.4 | C207, C211 |
| 2 | 10u | Capacitor_Tantalum_SMD:CP_EIA-3216-10_Kemet-I_Pad1.58x1.35mm_HandSolder | C201, C215 |
| 2 | 15K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R201, R206 |
| 2 | 3.9n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C204, C210 |
| 2 | 4.7u | Capacitor_SMD:CP_Elec_4x5.4 | C202, C216 |
| 2 | 560p | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C206, C212 |
| 2 | Conn_01x15 | Connector_PinSocket_2.54mm:PinSocket_1x15_P2.54mm_Vertical | J103, J104 |
| 2 | GND | MountingHole:MountingHole_3.2mm_M3_ISO14580_Pad | H101, H103 |
| 1 | 1 | MountingHole:MountingHole_3.2mm_M3 | H102 |
| 1 | 100K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R301 |
| 1 | 100n | Capacitor_Tantalum_SMD:CP_EIA-3216-10_Kemet-I_Pad1.58x1.35mm_HandSolder | C205 |
| 1 | 10n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C213 |
| 1 | 1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R207 |
| 1 | 2 | MountingHole:MountingHole_3.2mm_M3 | H104 |
| 1 | 330n | Capacitor_Tantalum_SMD:CP_EIA-3216-10_Kemet-I_Pad1.58x1.35mm_HandSolder | C203 |
| 1 | G*** | kibuzzard-68A2FE5C | kibuzzard-68A2FE5C |
| 1 | G*** | kibuzzard-68A2FE41 | kibuzzard-68A2FE41 |
| 1 | G*** | kibuzzard-68A2FE46 | kibuzzard-68A2FE46 |
| 1 | G*** | kibuzzard-68A2FE18 | kibuzzard-68A2FE18 |
| 1 | G*** | kibuzzard-68A2FE25 | kibuzzard-68A2FE25 |
| 1 | G*** | kibuzzard-68A2FE3C | kibuzzard-68A2FE3C |
| 1 | G*** | kibuzzard-68A2FE80 | kibuzzard-68A2FE80 |
| 1 | G*** | kibuzzard-68A2FE8F | kibuzzard-68A2FE8F |
| 1 | G*** | kibuzzard-68A2FE71 | kibuzzard-68A2FE71 |
| 1 | G*** | kibuzzard-68A2FE30 | kibuzzard-68A2FE30 |
| 1 | G*** | kibuzzard-68A2FE8A | kibuzzard-68A2FE8A |
| 1 | G*** | kibuzzard-68A2FE67 | kibuzzard-68A2FE67 |
| 1 | G*** | kibuzzard-68A2FE62 | kibuzzard-68A2FE62 |
| 1 | G*** | kibuzzard-68A2FE4F | kibuzzard-68A2FE4F |
| 1 | G*** | kibuzzard-68A2FE36 | kibuzzard-68A2FE36 |
| 1 | G*** | kibuzzard-68A2FE1E | kibuzzard-68A2FE1E |
| 1 | G*** | kibuzzard-68A2FE55 | kibuzzard-68A2FE55 |
| 1 | G*** | kibuzzard-68A2FE06 | kibuzzard-68A2FE06 |
| 1 | G*** | kibuzzard-68A2FE76 | kibuzzard-68A2FE76 |
| 1 | G*** | kibuzzard-68A2FE0E | kibuzzard-68A2FE0E |
| 1 | G*** | kibuzzard-68A2FE4A | kibuzzard-68A2FE4A |
| 1 | G*** | kibuzzard-68A2FE2B | kibuzzard-68A2FE2B |
| 1 | G*** | kibuzzard-65E1A759 | kibuzzard-65E1A759 |
| 1 | G*** | kibuzzard-68A2FF23 | kibuzzard-68A2FF23 |
| 1 | G*** | kibuzzard-68A2FE6B | kibuzzard-68A2FE6B |
| 1 | G*** | kibuzzard-68A2FE85 | kibuzzard-68A2FE85 |
| 1 | G*** | kibuzzard-68A2FF07 | kibuzzard-68A2FF07 |
| 1 | G*** | kibuzzard-68A2FF1E | kibuzzard-68A2FF1E |
| 1 | G*** | kibuzzard-68A2FE7B | kibuzzard-68A2FE7B |
| 1 | G*** | kibuzzard-68A2FE01 | kibuzzard-68A2FE01 |
| 1 | G*** | kibuzzard-68A2FF19 | kibuzzard-68A2FF19 |
| 1 | L78L05 | Package_TO_SOT_SMD:SOT-89-3 | U201 |
| 1 | LOGO | LOGO | G*** |
| 1 | MMDT3904 | Package_TO_SOT_SMD:SOT-363_SC-70-6_Handsoldering | Q301 |
| 1 | PT2399-Detailed | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U202 |
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Questions
How big is the Pt workshop PCB?
It measures 22.9 × 55.9 mm and has 4 copper layers, 4.69 mm thick.
What parts does the Pt workshop use?
67 parts, built around the L78L05CZ and MMDT3904. 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 Pt workshop KiCad files?
From the flpvsk/pt-workshop repository on GitHub, at the commit this page was made from: the board is pt-workshop/pt-workshop.kicad_pcb and its schematic attenuverters/attenuverters.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pt workshop design in my own project?
Its repository states no licence, so its author keeps all rights: ask flpvsk before reusing the design.