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2 layers110 × 90 mmFault Latch 2, the printed circuit board in 3D

Repository for Fault Latch, BSPB, TSIL (TSSI) , TSAL (RML),

Size
110 × 90 mm
Copper layers
2
Thickness
1.6 mm
Parts
108
Nets
69
Pads
293
Tracks, vias
586, 450
Pours
13
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
12 Feb 2025
Updated
3 Dec 2025

Overview

Fault Latch 2 is an open-source printed circuit board by JacobParent7, from the JacobParent7/FSAE_ELECTRONICS repository on GitHub. It is a 2-layer board of 110 × 90 mm with 108 parts on 69 nets, routed with 586 tracks and 450 vias.

It is built around the RI-1205S, SFH617A-1 and 74AHC1G00GW, with the 74LS279P-E among its other parts. Its parts include 34 resistors, 22 ICs, 17 capacitors, 13 transistors and 8 diodes.

Main components

4

README

README.md

Download git

Create a token in github so you can pull the repository in git bash


INSIDE GIT BASH TERMINAL

git clone https://github.com/JacobParent7/FSAE_ELECTRONICS.git

cd FSAE_ELECTRONICS

right click on FSAE_ELECTRONICS in git bash terminal to open file location and find KiCAD project


MAKE ALL EDITS TO LOCAL COPY HERE


OPEN GIT BASH TERMINAL WHEN FINISHED

cd FSAE_ELECTRONICS/

git checkout -b "Branch Name"

git add .

git commit -m "Description of work done in commit"

git push -u origin "Branch Name"

DELETE LOCAL COPY


REPEAT


TO MERGE:

go to branches tab

go to branches that you push

make a pull request

go into pull request

marge if no issues

delete branch

FAULT LATCH

FaultLatch

Parts

108
QtyValueFootprintReferences
1110kResistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR102, R104, R105, R106, R107, R109, R114, R121, R123, R125, R126
9641964-1641964-1:TE_641964-1U108, U111, U112, U113, U114, U115, U116, U120, U122
6100kResistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR101, R110, R113, R119, R122, R127
61kResistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR108, R111, R115, R120, R124, R129
6Q_NPN_BECPackage_TO_SOT_SMD:SOT-23Q101, Q102, Q103, Q104, Q110, Q111
6SFH617A-1Package_DIP:DIP-4_W7.62mmU101, U102, U103, U109, U110, U121
5100nCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC102, C103, C104, C116, C117
574AHC1G00Package_TO_SOT_SMD:SOT-23-5U104, U105, U106, U117, U119
5D_SchottkyDiode_SMD:D_SMAD104, D105, D106, D107, D108
4MountingHoleMountingHole:MountingHole_3.2mm_M3H101, H102, H103, H104
30.1uCapacitor_SMD:C_0402_1005MetricC108, C110, C112
310kResistor_SMD:R_0603_1608MetricR128, R133, R134
310nCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC101, C105, C106
3270RResistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR116, R117, R118
3Fujitsu_FTR-LYAA005xRelay_THT:Relay_SPST-NO_Fujitsu_FTR-LYAA005x_FormA_VerticalK101, K102, K103
3LOGOLOGOG***, G***, G***
3Q_NMOS_GSDPackage_TO_SOT_SMD:SOT-23Q105, Q106, Q112
3Q_PMOS_GSDPackage_TO_SOT_SMD:SOT-523Q107, Q108, Q113
3REDLED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolderD101, D102, D103
3SW_Omron_B3FSButton_Switch_SMD:SW_SPST_Omron_B3FS-100xPSW101, SW102, SW103
1.01uCapacitor_SMD:C_0402_1005MetricC109
10.33uCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC115
1100kResistor_SMD:R_0603_1608MetricR132
115kResistor_SMD:R_0603_1608MetricR131
11uCapacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolderC114
11uCapacitor_SMD:C_0402_1005MetricC107
12.2kResistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR103
122uCapacitor_SMD:C_0402_1005MetricC111
1270RResistor_SMD:R_0603_1608MetricR130
147uCapacitor_SMD:CP_Elec_6.3x5.4C113
1500RResistor_SMD:R_0603_1608MetricR112
174LS279Package_SO:SOIC-16_3.9x9.9mm_P1.27mmU107
1LM555xMPackage_SO:SOIC-8_3.9x4.9mm_P1.27mmU118
1Q_NMOS_GDSPackage_TO_SOT_SMD:TO-252-2Q109
1RI-1205SDC-DC:RI0505SPS101

Questions

How big is the Fault Latch 2 PCB?

It measures 110 × 90 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Fault Latch 2 use?

108 parts, built around the RI-1205S, SFH617A-1, 74AHC1G00GW and 74LS279P-E. 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 Fault Latch 2 KiCad files?

From the JacobParent7/FSAE_ELECTRONICS repository on GitHub, at the commit this page was made from: the board is Fault Latch/Fault Latch 2/Fault Latch 2.kicad_pcb and its schematic BSPD/BSPD.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Fault Latch 2 design in my own project?

Its repository states no licence, so its author keeps all rights: ask JacobParent7 before reusing the design.

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