OreSat Reaction Wheel Card
About the OreSat Reaction Wheel Card PCB
OreSat Reaction Wheel Card is an open source PCB design by oresat, published on GitHub under the GPL-2.0 license. It is a 4-layer board measuring 99.8 × 94.6 mm, with 258 components from 34 distinct parts.
Other key parts include the MAX7310ATE, MIC842LYC5-TR, TS5A21366DCUR and MAX4211FETE. By type, the board carries 164 resistors, 41 capacitors, 20 ICs, 20 transistors, 8 diodes and 5 connectors.
It belongs with the sensors designs in this gallery.
From the project
Controller PCB for OreSat reaction wheels, magnetorquers, IMU, and magnetometers
The OreSat RW Card run the four reaction wheels on the open source OreSat CubeSat system. The RW card:
- Has an OreSat Power Domain (OPD) per reaction wheel. - Requires a flexible cable between the card and the RW board.
- RW card hardware Git repository: - TODO: RW card Design Notes + Design Review Notes
- Website: - Email: - Instagram: @pdxaerospace
- 4 layer board - Bounding box is 99.8 x 94.6 mm (3.93 x 3.72 in) - Board thickness is 1.59 mm (0.063 inch)
Main components on the OreSat Reaction Wheel Card
OreSat Reaction Wheel Card bill of materials (BOM)
258 components, 34 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | MAX7310ATE MAX7310 Maxim | QFN-16-1EP_4x4mm_P0.65mm_EP2.1x2.1mm | U1, U4, U12, U19 |
| 8 | MIC842LYC5-TR MIC842LYC5 Microchip | SOT-353_SC-70-5 | U2, U3, U7, U8, U13, U14, U20, U21 |
| 4 | TS5A21366DCUR Texas Instruments | VSSOP-8_2.3x2mm_P0.5mm | U5, U9, U15, U22 |
| 4 | MAX4211FETE Analog Devices | QFN-16-1EP_4x4mm_P0.65mm_EP2.1x2.1mm | U10, U16, U18, U23 |
| 4 | DMP2240UDM-7 Diodes Inc | SOT-23-6 | Q1, Q5, Q11, Q16 |
| 8 | DMN3028LQ-7 Diodes Inc. | SOT-23 | Q2, Q6, Q9, Q10, Q12, Q15, Q17, Q20 |
| 8 | DMPH2040UVTQ-7 Diodes Incorporated | TSOT-23-6 | Q3, Q4, Q7, Q8, Q13, Q14, Q18, Q19 |
| 1 | TFM-120-01-L-D-RA J-SAMTEC-TFM-120-01-L-D-RA Samtec | J-SAMTEC-TFM-120-X1-XXX-D-RA | J1 |
| 4 | 0555600307 Molex | J-MOLEX-555600307 | J4, J5, J6, J101 |
| 4 | 150060AS75000 AMBER Wurth | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1, D4, D7, D10 |
| 4 | 150060GS75000 GREEN Wurth | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D2, D6, D9, D12 |
| 1 | GRT21BC71E106KE13K 10u 25V 0805 Murata Electronics | C_0805_2012Metric | C1 |
| 16 | GRT188R71E105KE13D 1u Murata Electronics | 0603-C-NOSILK | C2, C3, C6, C7, C11, C12, C14, C16 +8 |
| 16 | C0603C104K5RACAUTO 100n KEMET | 0603-C-NOSILK | C4, C5, C8, C9, C10, C13, C15, C17 +8 |
| 4 | C0603C103J5RACAUTO 10n KEMET | 0603-C-NOSILK | C19, C30, C41, C68 |
| 4 | C0603C474K3RACAUTO 470n KEMET | 0603-C-NOSILK | C20, C31, C42, C69 |
| 4 | RMCF0603FT10R0 10 Stackpole Electronics | 0603-C-NOSILK | R1, R43, R89, R133 |
| 28 | RMCF0603FT100R 100 Stackpole Electronics | 0603-C-NOSILK | R2, R6, R7, R8, R12, R24, R25, R44 +20 |
| 14 | RC0603FR-0710KL 100 | 0603-C-NOSILK | R3, R4, R5, R9, R10, R13, R54, R55 +6 |
| 2 | CRGCQ0603F2K7 100 | 0603-C-NOSILK | R11, R105 |
Show 14 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 8 | RMCF0603FT665K 665k Stackpole Electronics | 0603-C-NOSILK | R14, R15, R58, R59, R102, R103, R146, R147 |
| 14 | 100 | 0603-C-NOSILK | R16, R17, R45, R46, R47, R135, R136, R137 +6 |
| 52 | RMCF0603FT10K0 10k Stackpole Electronics | 0603-C-NOSILK | R18, R23, R26, R28, R30, R32, R34, R36 +44 |
| 8 | RMCF0603FT330K 330k Stackpole Electronics | 0603-C-NOSILK | R19, R20, R63, R64, R107, R108, R151, R152 |
| 8 | RMCF0603FT1M00 1M Stackpole Electronics | 0603-C-NOSILK | R21, R22, R65, R66, R109, R110, R153, R154 |
| 4 | RMCF0603FT4K70 4.7k Stackpole Electronics | 0603-C-NOSILK | R27, R69, R113, R157 |
| 4 | RMCF0603FT100K 100k Stackpole Electronics | 0603-C-NOSILK | R29, R73, R117, R161 |
| 4 | CSNL1206FT15L0 15m Stackpole Electronics | 1206-C | R31, R75, R119, R163 |
| 4 | RMCF0603ZT0R00 0 Stackpole Electronics | 0603-C-NOSILK | R33, R79, R123, R167 |
| 3 | 0 | 0603-C-NOSILK | R35, R81, R125 |
| 2 | RC0603FR-07100RL 100 | 0603-C-NOSILK | R53, R91 |
| 1 | CSR1206FTR100 100 | 0603-C-NOSILK | R57 |
| 3 | RC0603JR-070RL 100 | 0603-C-NOSILK | R61, R97, R99 |
| 1 | RC0603FR-0710KL 0 | 0603-C-NOSILK | R169 |
OreSat Reaction Wheel Card design files
The KiCad project lives in the oresat/oresat-adcs-hardware repository on GitHub; these links point at the commit this page was built from.
OreSat Reaction Wheel Card: common questions
How big is the OreSat Reaction Wheel Card PCB?
The OreSat Reaction Wheel Card measures 99.8 × 94.6 mm, has 4 copper layers and is 1.7702 mm thick.
How many components are on the OreSat Reaction Wheel Card?
258 components, from 34 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 Reaction Wheel Card design files?
From the oresat/oresat-adcs-hardware 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 Reaction Wheel Card design in my own project?
Yes, under the terms of its GPL-2.0 license, which oresat chose for the repository.
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