Helper switch
30350n·spark-inducer·helper-switch/helper-switch.kicad_pcb
About the Helper switch PCB
Helper switch is an open source PCB design by 30350n, published on GitHub under the CERN-OHL-W-2.0 license. It is a 2-layer board measuring 15.5 × 25.8 mm, with 7 components from 7 distinct parts.
By type, the board carries 6 connectors and 1 switch.
It belongs with the audio and dev boards & breakouts designs in this gallery.
From the project
Eurorack module development kit

Helper switch bill of materials (BOM)
7 components, 7 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SBH11-NBPC-D08-SM-BK +5V_IN | TestPoint_THTPad_1.8x1.8mm_Drill1.0mm | J1 |
| 1 | WQP-WQP518MA-BM +5V_OUT | TestPoint_THTPad_1.8x1.8mm_Drill1.0mm | J2 |
| 1 | WQP-WQP518MA-BM +12V_IN | TestPoint_THTPad_1.8x1.8mm_Drill1.0mm | J3 |
| 1 | WQP-WQP518MA-BM +12V_OUT | TestPoint_THTPad_1.8x1.8mm_Drill1.0mm | J4 |
| 1 | WQP-WQP518MA-BM -12V_IN | TestPoint_THTPad_1.8x1.8mm_Drill1.0mm | J5 |
| 1 | WQP-WQP518MA-BM -12V_OUT | TestPoint_THTPad_1.8x1.8mm_Drill1.0mm | J6 |
| 1 | GF-161-3011 POWER | CW_GF-161-3011 | SW1 |
Helper switch design files
The KiCad project lives in the 30350n/spark-inducer repository on GitHub; these links point at the commit this page was built from.
Helper switch: common questions
How big is the Helper switch PCB?
The Helper switch measures 15.5 × 25.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Helper switch?
7 components, from 7 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 Helper switch design files?
From the 30350n/spark-inducer repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Helper switch design in my own project?
Yes, under the terms of its CERN-OHL-W-2.0 license, which 30350n chose for the repository.
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