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Generic OreSat 3U Backplane

oresat·oresat-backplane·3U/oresat-backplane-3u/oresat-backplane-3u.kicad_pcb

Generic OreSat 3U Backplane PCB layout, top view — open source board by oresat
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About the Generic OreSat 3U Backplane PCB

Generic OreSat 3U Backplane is an open source PCB design by oresat, published on GitHub. It is a 4-layer board measuring 82.5 × 327 mm, with 189 components from 8 distinct parts.

By type, the board carries 34 capacitors, 10 resistors and 1 connector.

It belongs with the power & battery designs in this gallery.

From the project

Artisanally hand-crafted bespoke backplane for OreSat.

The OreSat CubeSat bus uses a card cage / backplane system based on a 1 Mbps Controller Area Network (CAN) bus and a 2 cell Lithium ion battery power bus (6.0 - 8.4 V). There are ~ 8 cards per CubeSat "U", and the board is meant to be general purpose enough to allow for some card swapping. The RF lines, however, are microstrips on the backplane PCB so the backplane must be rev'd for changes in the RF cards. There are three sets of connectors:

Generic OreSat 3U Backplane, from the project README
From the project README

Generic OreSat 3U Backplane bill of materials (BOM)

189 components, 8 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
A115240
m55-6001642
J1
30
SFM-120-X1-XXX-D
CF1.2, CF2.2, CF3.2, CF4.2, CF5.2, CF6.2, CF7.2, CF8.2 +22
24
SFM-110-01-S-D-LC
Samtec Inc.
CF2.1, CF3.1, CF4.1, CF7.1, CF8.1, CF9.1, CF10.1, CF11.1 +16
90
J-MOLEX-SMPM-73300-0111X
CM1.1, CM1.2, CM1.3, CM1.4, CM1.5, CM1.6, CM1.7, CM1.8 +82
30
TMK316AB7106KLHT
10u 25V
Taiyo Yuden
C1, C2, C3, C4, C5, C6, C7, C8 +22
4
C0603C102J5GECAUTO
1n
KEMET
C1.1, C1.2, C1.3, C1.4
8
RMCF1206FT60R4
60.4
Stackpole Electronics Inc
R1.1, R1.2, R1.3, R1.4, R1.5, R1.6, R1.7, R1.8
2
0
R20.5, R20.6

Generic OreSat 3U Backplane design files

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

Generic OreSat 3U Backplane: common questions

How big is the Generic OreSat 3U Backplane PCB?

The Generic OreSat 3U Backplane measures 82.5 × 327 mm, has 4 copper layers and is 1.7702 mm thick.

How many components are on the Generic OreSat 3U Backplane?

189 components, from 8 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 Generic OreSat 3U Backplane design files?

From the oresat/oresat-backplane 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 Generic OreSat 3U Backplane design in my own project?

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

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