Cosmo
About the Cosmo PCB
Cosmo is an open source PCB design by kristofferkoch, published on GitHub. It is a 2-layer board measuring 98.9 × 98.9 mm, with 127 components from 58 distinct parts.
Other key parts include the SSM2164P, TL074, TPS563209DDCR, TPS55340 and MCP3008. By type, the board carries 54 resistors, 45 capacitors, 8 ICs, 6 connectors, 6 diodes and 5 relays.
Main components on the Cosmo
Cosmo bill of materials (BOM)
127 components, 58 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | SSM2164P | DIP-16__300_ELL | IC1, IC2 |
| 3 | TL074 | DIP-14__300_ELL | U1, U4, U5 |
| 1 | TPS563209DDCR | SC70-6_Handsoldering | U2 |
| 1 | TPS55340 | SSOP-14 | U3 |
| 1 | MCP3008 | DIP-16__300_ELL | U6 |
| 1 | CONN_5 | Pin_Header_Straight_1x05 | P1 |
| 1 | CONN_2 | Pin_Header_Straight_1x02 | P3 |
| 1 | audioin | Pin_Header_Straight_2x04 | P4 |
| 1 | amped | Pin_Header_Straight_2x04 | P5 |
| 1 | rpipower | Pin_Header_Straight_1x02 | P6 |
| 1 | audioout | Pin_Header_Straight_2x02 | P7 |
| 1 | FUSE | SM1210 | F1 |
| 1 | mixpot | SIL-3 | K1 |
| 1 | AD0 | SIL-3 | K2 |
| 1 | AD1 | SIL-3 | K3 |
| 1 | AD2 | SIL-3 | K4 |
| 1 | AD3 | SIL-3 | K5 |
| 1 | 2A | Diode-SMC_Standard | D1 |
| 3 | DIODE | Diode_DO-35_SOD27_Horizontal_RM10 | D2, D3, D4 |
| 1 | TVS | SM1210L | D5 |
Show 38 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LED | LED-5MM | D6 |
| 1 | 3.3uH | SM1812 | L1 |
| 1 | 27µ | Choke_Toroid_horizontal_Diameter3-5mm_Amidon-T12 | L2 |
| 2 | 1µ | c_0805 | C1, C2 |
| 2 | 10u | c_0805 | C3, C4 |
| 16 | 100n | c_0805 | C5, C6, C7, C8, C9, C10, C12, C35 +8 |
| 1 | 22u | c_0805 | C11 |
| 1 | 47u | Elko_vert_DM5_RM2-5 | C13 |
| 1 | 4.7µ | Elko_vert_DM5_RM2-5 | C14 |
| 1 | 680n | c_0805 | C15 |
| 1 | 150n | c_0805 | C16 |
| 1 | 680p | c_0805 | C17 |
| 1 | 4.7µ | c_0805 | C18 |
| 2 | C | c_0805 | C19, C20 |
| 6 | 560p | c_0805 | C21, C22, C24, C25, C27, C28 |
| 3 | 100p | c_0805 | C23, C26, C29 |
| 1 | 1u | c_0805 | C30 |
| 2 | CP2 | Elko_vert_DM5_RM2-5 | C31, C32 |
| 4 | 22p | c_0805 | C33, C34, C37, C38 |
| 4 | 47k | Resistor_Horizontal_RM10mm | R1, R2, R3, R4 |
| 1 | 10 | Resistor_Horizontal_RM10mm | R5 |
| 1 | 56.2k | Resistor_SMD0805_HandSoldering | R6 |
| 2 | 10k | Resistor_SMD0805_HandSoldering | R7, R11 |
| 1 | 422 | Resistor_SMD0805_HandSoldering | R8 |
| 1 | 60.4k | Resistor_SMD0805_HandSoldering | R9 |
| 1 | 187k | Resistor_SMD0805_HandSoldering | R10 |
| 6 | 100k | Resistor_Horizontal_RM10mm | R12, R13, R15, R16, R17, R18 |
| 1 | DNM | Resistor_Horizontal_RM10mm | R14 |
| 3 | 80k | Resistor_Horizontal_RM10mm | R19, R20, R23 |
| 2 | 500 | Resistor_Horizontal_RM10mm | R21, R22 |
| 1 | 33k | Resistor_Horizontal_RM10mm | R24 |
| 1 | DNM | Resistor_SMD0805_HandSoldering | R25 |
| 6 | 33k | Resistor_SMD0805_HandSoldering | R26, R27, R30, R31, R32, R35 |
| 4 | 500 | Resistor_SMD0805_HandSoldering | R28, R29, R33, R34 |
| 1 | 470 | Resistor_SMD0805_HandSoldering | R36 |
| 6 | 1M | Resistor_SMD0805_HandSoldering | R37, R38, R39, R40, R45, R46 |
| 8 | 100k | Resistor_SMD0805_HandSoldering | R41, R42, R43, R44, R47, R48, R49, R50 |
| 4 | 10k | Resistor_Horizontal_RM10mm | R51, R52, R53, R54 |
Cosmo design files
The KiCad project lives in the kristofferkoch/cosmo-pcb repository on GitHub; these links point at the commit this page was built from.
- Layoutc2.kicad_pcb
Cosmo: common questions
How big is the Cosmo PCB?
The Cosmo measures 98.9 × 98.9 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Cosmo?
127 components, from 58 distinct parts. The full bill of materials is listed on this page.
Where can I download the Cosmo design files?
From the kristofferkoch/cosmo-pcb repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Cosmo design in my own project?
The repository has no license, so all rights stay with kristofferkoch. Use it as a reference, and ask the author before reusing the design.