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OreSat 3U Backplane for ESI

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

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

OreSat 3U Backplane for ESI is an open source PCB design by oresat, published on GitHub. It is a 4-layer board measuring 82.5 × 327 mm, with 81 components from 8 distinct parts.

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

From the project

Artisanally hand-crafted bespoke backplane for OreSat.

The ESI/OreSat 3U Backplane is the backplane for a 3U backplane based on the open source OreSat CubeSat system. The backplane has:

- 40 pin main connnectors for Oresat-based cards - Bus voltage (2S Lithium Ion batteries with a Vnom of 7.2V) - Two CAN busses for inter-card communication - RF lines using SMPM RF connectors and microstrips - A debug connector to carry critical lines to the outside of the CubeSat - Four cutouts for solar module connections

OreSat 3U Backplane for ESI bill of materials (BOM)

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

QtyPartRefs
1
M55-6001642R
Harwin Inc.
J1
13
SFM-120-01-S-D-LC
Samtec Inc.
CF1.2, CF3.2, CF4.2, CF6.2, CF9.2, CF11.2, CF13.2, CF18.2 +5
17
SFM-120-01-S-D-LC
SFM-120-X1-XXX-D
Samtec Inc.
CF2.2, CF5.2, CF7.2, CF8.2, CF10.2, CF12.2, CF14.2, CF15.2 +9
6
0733000110
Molex
CM1.1, CM1.11, CM1.30, CM2.4, CM3.30, CM.3.3
30
TMK316AB7106KLHT
10u 25V
Taiyo Yuden
C1, C2, C3, C4, C5, C6, C7, C8 +22
4
C0603C102J5GECAUTO
1n
KEMET
C1.1, C1.2, C20.1, C20.2
8
RMCF1206FT60R4
60.4
Stackpole Electronics Inc
R1.1, R1.2, R1.3, R1.4, R20.1, R20.2, R20.3, R20.4
2
RMCF0603ZT0R00
0
Stackpole Electronics Inc
R20.5, R20.6

OreSat 3U Backplane for ESI 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.

OreSat 3U Backplane for ESI: common questions

How big is the OreSat 3U Backplane for ESI PCB?

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

How many components are on the OreSat 3U Backplane for ESI?

81 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 OreSat 3U Backplane for ESI 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 OreSat 3U Backplane for ESI 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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