Anti-Spark Switch

msglazer·Anti-Spark_Switch

Anti-Spark Switch PCB layout, top view — open source board by msglazer
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About the Anti-Spark Switch PCB

Anti-Spark Switch is an open source PCB design by msglazer, published on GitHub. It is a 2-layer board measuring 63.3 × 42 mm, with 17 components from 9 distinct parts.

By type, the board carries 7 connectors, 5 resistors, 3 transistors, 1 diode and 1 capacitor.

From the project

personal improvements/changes to the vedder antispark switch

Design allows for a battery to be connected to a source without the usual spark in the connector, also provides a convenient on off ability. Improvements to the design include an upgraded, more robust fuse and fuse holder, an additional MOSFET for higher current handling as well as better distribution of power through the MOSFETs. There is also the option of adding an LED powered through the PCB, the LED is powered after the MOSFET switch

Anti-Spark Switch, from the project README
From the project README

Anti-Spark Switch bill of materials (BOM)

17 components, 9 distinct parts — part numbers from the project's BOM.

QtyPartRefs
3
942-IRFS7530TRL7PP
IRFS7530
Infineon Technologies
Q1, Q2, Q3
4
Pad_Conn
P1, P2, P5, P6
2
710-7460408
Screw_Terminal
Wurth Electronics
P3, P4
1
CONN_01X04
P7
1
821-BZT52B12
ZENER
Taiwan Semiconductor
D1
1
581-06033C105KAT2A
1uF
AVX
C1
2
667-ERJ-3EKF1004V
1M
Panasonic
R1, R2
1
667-ERJ-3EKF1001V
1K
Panasonic
R3
2
16.5K
R4, R5

Anti-Spark Switch design files

The KiCad project lives in the msglazer/Anti-Spark_Switch repository on GitHub; these links point at the commit this page was built from.

Anti-Spark Switch: common questions

How big is the Anti-Spark Switch PCB?

The Anti-Spark Switch measures 63.3 × 42 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Anti-Spark Switch?

17 components, from 9 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Anti-Spark Switch design files?

From the msglazer/Anti-Spark_Switch repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Anti-Spark Switch design in my own project?

The repository has no license, so all rights stay with msglazer. Use it as a reference, and ask the author before reusing the design.