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4 layers59.1 × 45.7 mmShared Main, the printed circuit board in 3D
Size
59.1 × 45.7 mm
Copper layers
4
Thickness
1.6 mm
Parts
34
Nets
38
Pads
127
Tracks, vias
185, 3
Pours
2
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
23 Dec 2025
Updated
7 Nov 2026

Overview

Shared Main is an open-source printed circuit board by anton-jh, from the anton-jh/Side-panels repository on GitHub. It is a 4-layer board of 59.1 × 45.7 mm with 34 parts on 38 nets, routed with 185 tracks and 3 vias.

It is built around the 74HC4051 and BC547. Its parts include 10 capacitors, 6 resistors, 6 connectors, 4 transistors and 3 fuses. It belongs with the ESP32 boards of this library.

Main components

2

Parts

34
QtyValueFootprintReferences
9100nFCapacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mmC1, C12, C13, C14, C15, C16, C17, C18, C19
4BC547Package_TO_SOT_THT:TO-92_Inline_WideQ1, Q2, Q3, Q4
2100Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_HorizontalR2, R3
210kResistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_HorizontalR1, R7
247Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_HorizontalR9, R10
2M3MountingHole:MountingHole_3.2mm_M3H2, H3
10.1AFuse:Fuse_Bourns_MF-RHT050F2
10.2AFuse:Fuse_Bourns_MF-RHT050F3
10.5AFuse:Fuse_Bourns_MF-RHT050F1
1100uFCapacitor_THT:CP_Radial_D5.0mm_P2.00mmC3
174HC4051Package_DIP:DIP-16_W7.62mm_SocketU2
1Analog inputsTerminalBlock_Phoenix:TerminalBlock_Phoenix_MPT-0,5-8-2.54_1x08_P2.54mm_HorizontalJ5
1Conn_01x09Connector_PinHeader_2.54mm:PinHeader_1x09_P2.54mm_VerticalJ4
1Conn_RJ45_Right_To_LeftConnector_RJ:RJ45_Amphenol_54602-x08_HorizontalJ16
1Conn_SR_ChainConnector_PinSocket_2.54mm:PinSocket_1x05_P2.54mm_HorizontalJ3
1ESP32-S3-ZEROESP32-S3-ZERO:MODULE_ESP32-S3-ZEROU1
1GND or FloatingTerminalBlock_Phoenix:TerminalBlock_Phoenix_MPT-0,5-4-2.54_1x04_P2.54mm_HorizontalJ2
1M3_Chassis_GNDMountingHole:MountingHole_3.2mm_M3_DIN965_Pad_TopOnlyH1
1PowerTerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-3_1x03_P5.00mm_HorizontalJ1

Questions

How big is the Shared Main PCB?

It measures 59.1 × 45.7 mm and has 4 copper layers, 1.6 mm thick.

What parts does the Shared Main use?

34 parts, built around the 74HC4051 and BC547. 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 Shared Main KiCad files?

From the anton-jh/Side-panels repository on GitHub, at the commit this page was made from: the board is PCBs/Shared_Main/Shared_Main.kicad_pcb and its schematic PCBs/Right_Keypad/Right_Keypad.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Shared Main design in my own project?

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

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2

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