2 layers25.5 × 37 mm First proper pcb, the printed circuit board in 3D

First proper pcb

An H bridge pcb made in Ki-Cad

Size: 25.5 × 37 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 10
Nets: 6
Pads: 28
Tracks, vias: 89, 1
Routed: Yes
KiCad: KiCad 8.0 (file 20240108)
Created: 27 Jul 2025
Updated: 27 Jul 2025

Overview

First proper pcb is an open-source printed circuit board by Soorya-John, from the Soorya-John/H-Bridge repository on GitHub. It is a 2-layer board of 25.5 × 37 mm with 10 parts on 6 nets, routed with 89 tracks and 1 via.

It is built around the IRF4905 and IRLZ44N. Its parts include 4 resistors, 4 transistors, 1 diode and 1 connector.

Main components

README

README.md

H-Bridge

An H bridge pcb made in Ki-Cad

Parts

Qty	Value	Footprint	References
3	10k	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal	R2, R3, R4
2	IRF4905	Package_TO_SOT_THT:TO-220-3_Vertical	Q3, Q5
2	IRLZ44N	Package_TO_SOT_THT:TO-220-3_Vertical	Q1, Q2
1	10K	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal	R1
1	LED	LED_THT:LED_D5.0mm_Clear	D1
1	Screw_Terminal_01x06	TerminalBlock_4Ucon:TerminalBlock_4Ucon_1x06_P3.50mm_Horizontal	J1

Questions

How big is the First proper pcb PCB?

It measures 25.5 × 37 mm and has 2 copper layers, 1.6 mm thick.

What parts does the First proper pcb use?

10 parts, built around the IRF4905 and IRLZ44N. 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 First proper pcb KiCad files?

From the Soorya-John/H-Bridge repository on GitHub, at the commit this page was made from: the board is first proper pcb.kicad_pcb and its schematic first proper pcb.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the First proper pcb design in my own project?

Its repository states no licence, so its author keeps all rights: ask Soorya-John before reusing the design.

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/soorya-john-h-bridge" title="First proper pcb in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/soorya-john-h-bridge.jpg" alt="First proper pcb" width="1200" height="900">

A picture that opens the board, for a README

[![First proper pcb](https://pcbkit.io/embed/boards/soorya-john-h-bridge.jpg?size=s)](https://pcbkit.io/boards/soorya-john-h-bridge)

Source

Repository: Soorya-John/H-Bridge
Board file: first proper pcb.kicad_pcb
Commit: 10f5030
Licence: Not stated

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