KARCA v2
About the KARCA v2 PCB
KARCA v2 is an open source PCB design by rice-eclipse, published on GitHub. It is a 4-layer board measuring 250 × 145 mm, with 247 components from 63 distinct parts.
Other key parts include the C1975229, C2937014, C16939, C2873295 and C1880390. By type, the board carries 120 resistors, 69 capacitors, 23 ICs, 17 diodes, 6 transistors and 6 fuses.
From the project
Schematics and Board files for the Titan II/Proxima Hybrid Engine Control System
It performs the same functions as kARCA with the addition of thermocouple data collection, driver current monitoring, and battery monitoring. In addition, various components have been replaced for updated ICs and the power regulation and load cell circuits have been revised.
A detailed description of the changes can be found on karca_v2/Docs/changelog
Detailed documentation on the circuit board can be found on karcav2/Docs/maindocumentation
Main components on the KARCA v2
KARCA v2 bill of materials (BOM)
247 components, 63 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | C1975229 TVS1400DRV | WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm | U1 |
| 2 | C2937014 NUP4202 | SOT-363_SC-70-6 | U2, U5 |
| 3 | C16939 MCP3208 | SOIC-16_3.9x9.9mm_P1.27mm | U3, U11, U13 |
| 4 | C2873295 TLV9304xD | SO-14_3.9x8.65mm_P1.27mm | U6, U7, U9, U10 |
| 1 | C1880390 AP62300WU | TSOT-23-6 | U8 |
| 4 | C1346337 AD8223 | SOIC-8_3.9x4.9mm_P1.27mm | U18, U19, U20, U21 |
| 4 | C2156609 TLVH431 | SOT-23 | U23, U25, U27, U29 |
| 1 | C133969 INA180A4 | SOT-23-5 | U30 |
| 1 | C2058313 INA180A4 | TSSOP-14_4.4x5mm_P0.65mm | U31 |
| 1 | C116203 INA180A2 | SOT-23-5 | U33 |
| 1 | C4366617 TLV9301xDBV | SOT-23-5 | U36 |
| 5 | C20917 AO3400A | SOT-23 | Q1, Q9, Q10, Q11, Q12 |
| 1 | AO3400A | SOT-23 | Q4 |
| 1 | Conn_02x10_Odd_Even | PinSocket_2x10_P2.54mm_Vertical | J12 |
| 4 | C24497 1u | C_1206_3216Metric | Ce1, Ce2, Ce3, Ce4 |
| 6 | C20814 Fuse | Fuse_1812_4532Metric | F2, F3, F4, F5, F6, F7 |
| 1 | C2759901 SDT10A45P5 | D_PowerDI-5 | D1 |
| 2 | C2298 LED | LED_1206_3216Metric | D2, D5 |
| 1 | C126807 LM4040DBZ-4.1 | SOT-23 | D4 |
| 1 | C2298 HBT | LED_1206_3216Metric | D6 |
Show 43 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | C183851 LED | LED_1206_3216Metric | D7 |
| 6 | C14641 LED | LED_1206_3216Metric | D8, D10, D13, D16, D19, D22 |
| 5 | C2480 D_Schottky | D_SMA | D11, D14, D17, D20, D23 |
| 1 | C305173 3.3u | L_Sunlord_SWPA5040S | L1 |
| 1 | C28233 100n | C_0805_2012Metric | C1 |
| 1 | C15850 10u | C_0805_2012Metric | C2 |
| 2 | C24497 1u | C_0805_2012Metric | C3, C14 |
| 21 | C24497 0.1u | C_1206_3216Metric | C4, C5, C16, C20, C24, C28, C32, C40 +13 |
| 2 | 0.1u | C_0805_2012Metric | C6, C12 |
| 1 | C28233 0.1u | C_0805_2012Metric | C7 |
| 2 | C24497 100n | C_1206_3216Metric | C8, C9 |
| 2 | C28323 1u | C_0805_2012Metric | C13, C73 |
| 1 | C16780 47u | C_0805_2012Metric | C17 |
| 8 | C24497 1u | C_1206_3216Metric | C18, C22, C26, C30, C34, C36, C38, C64 |
| 4 | C110052 10u | CP_EIA-3216-18_Kemet-A | C19, C23, C27, C31 |
| 4 | C1881 680n | C_1206_3216Metric | C21, C25, C29, C33 |
| 8 | C24497 680n | C_1206_3216Metric | C35, C37, C39, C43, C49, C55, C61, C65 |
| 8 | C15195 0.01u | C_0402_1005Metric | C41, C44, C47, C50, C53, C56, C59, C62 |
| 1 | C24497 0.1u | C_0402_1005Metric | C70 |
| 2 | C1525 0.1u | C_0402_1005Metric | C74, C76 |
| 1 | C1848 0.1u | C_1206_3216Metric | C75 |
| 1 | C4502 470 | R_1206_3216Metric | R1 |
| 1 | C4177 1.8k | R_0603_1608Metric | R2 |
| 1 | C185323 52.3k | R_0603_1608Metric | R3 |
| 1 | C870723 40k | R_1206_3216Metric | R5 |
| 56 | C4410 1k | R_1206_3216Metric | R9, R14, R15, R18, R23, R24, R25, R26 +48 |
| 8 | C17902 10k | R_1206_3216Metric | R10, R12, R19, R90, R94, R98, R107, R121 |
| 1 | C15401 10k | R_0603_1608Metric | R11 |
| 1 | C2828898 250 | R_1206_3216Metric | R13 |
| 1 | C1493 15k | R_1206_3216Metric | R16 |
| 1 | C872846 5k | R_1206_3216Metric | R17 |
| 4 | C17930 330 | R_1206_3216Metric | R20, R27, R34, R41 |
| 8 | C25890 3.3k | R_0402_1005Metric | R21, R22, R28, R29, R35, R36, R42, R43 |
| 4 | C17886 30 | R_1206_3216Metric | R50, R55, R60, R101 |
| 4 | C25664 47k | R_1206_3216Metric | R51, R56, R61, R102 |
| 4 | C26032 3.3k | R_0402_1005Metric | R52, R57, R62, R103 |
| 8 | C17901 100 | R_1206_3216Metric | R63, R66, R69, R72, R75, R78, R81, R84 |
| 4 | C17927 1M | R_1206_3216Metric | R67, R73, R79, R85 |
| 5 | C241862 10m | R_2512_6332Metric | R108, R110, R112, R114, R116 |
| 1 | C105142 10m | R_2512_6332Metric | R122 |
| 1 | C17900 100k | R_1206_3216Metric | R124 |
| 1 | C316211 50k | R_0805_2012Metric | R125 |
| 4 | C149918 3.3k | R_0402_1005Metric | R127, R128, R129, R130 |
KARCA v2 design files
The KiCad project lives in the rice-eclipse/kARCA_v2 repository on GitHub; these links point at the commit this page was built from.
KARCA v2: common questions
How big is the KARCA v2 PCB?
The KARCA v2 measures 250 × 145 mm, has 4 copper layers and is 1.32048 mm thick.
How many components are on the KARCA v2?
247 components, from 63 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 KARCA v2 design files?
From the rice-eclipse/kARCA_v2 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 KARCA v2 design in my own project?
The repository has no license, so all rights stay with rice-eclipse. Use it as a reference, and ask the author before reusing the design.