2 layers24.5 × 28.5 mm
BJT Adjutable Multiivibrator P1
iamjo-maker/pcb-designs
This repository contains PCB designs developed as part of coursework and independent exploration in hardware design.
10 parts
2 layers28.9 × 24.1 mm
BJT Astable multivibrator smt
iamjo-maker/pcb-designsThis repository contains PCB designs developed as part of coursework and independent exploration in hardware design.
- Size
- 28.9 × 24.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 18
- Nets
- 6
- Pads
- 30
- Tracks, vias
- 37, 0
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 3 May 2026
- Updated
- 3 May 2026
Overview
BJT Astable multivibrator smt is an open-source printed circuit board by iamjo-maker, from the iamjo-maker/pcb-designs repository on GitHub. It is a 2-layer board of 28.9 × 24.1 mm with 18 parts on 6 nets, routed with 37 tracks and 0 vias.
Its parts include 4 resistors, 2 capacitors, 2 diodes and 2 transistors.
README
README.mdpcb-designs
This repository contains PCB designs developed as part of coursework and independent exploration in hardware design.
Tools Used
- Your software: KiCad
Files included (for each project)
- Schematics
- PCB layout files
- Exported renders (if available)
Parts
18| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | Fiducial | Fiducial:Fiducial_0.5mm_Mask1.5mm | FID1, FID2, FID3, FID5 |
| 4 | MountingHole | MountingHole:MountingHole_2.1mm | H1, H2, H3, H4 |
| 2 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R3 |
| 2 | 220uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2 |
| 2 | 2N3904 | Package_TO_SOT_THT:TO-92_Inline | Q1, Q2 |
| 2 | 5k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R4 |
| 2 | LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1, D2 |
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Questions
How big is the BJT Astable multivibrator smt PCB?
It measures 28.9 × 24.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the BJT Astable multivibrator smt use?
18 parts. 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 BJT Astable multivibrator smt KiCad files?
From the iamjo-maker/pcb-designs repository on GitHub, at the commit this page was made from: the board is BJT Adjustable Multivibrator SMD/BJT Astable multivibrator smt.kicad_pcb and its schematic 555Blinker/triplefive.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the BJT Astable multivibrator smt design in my own project?
Its repository states no licence, so its author keeps all rights: ask iamjo-maker before reusing the design.