HardLabs

Quad passive switch

nickmarrone·OscenOpenSource·QuadPassiveSwitch/quad_passive_switch.kicad_pcb

Quad passive switch PCB layout, top view — open source board by nickmarrone

About the Quad passive switch PCB

Quad passive switch is an open source PCB design by nickmarrone, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 20 × 108.5 mm, with 16 components from 2 distinct parts.

By type, the board carries 12 connectors and 4 switches.

It belongs with the audio and test & measurement designs in this gallery.

From the project

Open source eurorack modules from Oscen Eurorack Instruments

A 4HP, 3U Eurorack utility module with four independent SPDT (single-pole, double-throw) passive switches. Each section manually routes one signal between two destinations using a sub-mini toggle switch. The whole module is passive — it needs no power and adds no buffering or coloration to the signal.

The module is divided into four identical sections, arranged top-left (TL), top-right (TR), bottom-left (BL), and bottom-right (BR). Each section has:

Quad passive switch bill of materials (BOM)

16 components, 2 distinct parts — part numbers from the project's BOM.

QtyPartRefs
12
WQP-WQP518MA
3.5mm_Mono_Switched_SymSmall_0.05
Wenzhou QingPu Electronics Co
J1, J2, J3, J4, J5, J6, J7, J8 +4
4
SW_SPDT_MSM
SW1, SW2, SW3, SW4

Quad passive switch design files

The KiCad project lives in the nickmarrone/OscenOpenSource repository on GitHub; these links point at the commit this page was built from.

Quad passive switch: common questions

How big is the Quad passive switch PCB?

The Quad passive switch measures 20 × 108.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Quad passive switch?

16 components, from 2 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 Quad passive switch design files?

From the nickmarrone/OscenOpenSource 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 Quad passive switch design in my own project?

Yes, under the terms of its GPL-3.0 license, which nickmarrone chose for the repository.

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