Mini Rack Power Carrier
About the Mini Rack Power Carrier PCB
Mini Rack Power Carrier is an open source STM32 PCB design by kquinsland, published on GitHub. It is a 4-layer board measuring 100 × 34.9 mm, with 61 components from 37 distinct parts.
Its main chip is the STM32C092GCU6, from the STM32 family. Other key parts include the LM5164DDAR, LMX5069MS, INA237AIDGSR, TCAN3413DR and SW3538_140W_Module. By type, the board carries 26 resistors, 18 capacitors, 5 ICs, 3 transistors, 2 connectors and 2 diodes.
From the project
Hardware, firmware, and host tooling for a modular mini-rack power system.
KiCad project for one mini-rack power carrier board.
- Mate with one backplane slot. - Host one fixed-address DC/USB-C PD module. - Convert the slot-local DC and CAN-FD interface into the module-local wiring. - Keep carrier-side interfaces reusable across all backplane slots.
- J1 and MOD1 are intentionally DNP/excluded from the PCB assembly BOM. The user installs and solders the right-angle XT30PW(2+2) connector and SW3538 module after assembly. - The housekeeping converter shares the backplane's LM5164DDAR regulator and PSPMAA0805-101M-ANP 100 µH inductor. - L1 is placed and routed. The…
Main components on the Mini Rack Power Carrier
Mini Rack Power Carrier bill of materials (BOM)
61 components, 37 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | STM32C092GCU6 STMicroelectronics | QFN-28_4x4mm_P0.5mm | U1 |
| 1 | LM5164DDAR Texas Instruments | TI_SO-PowerPAD-8 | U2 |
| 1 | LMX5069MS Wuxi Maxinmicro | MSOP-10_3x3mm_P0.5mm_0.20mm_Clearance | U3 |
| 1 | INA237AIDGSR Texas Instruments | TSSOP-10_3x3mm_P0.5mm | U4 |
| 1 | TCAN3413DR Texas Instruments | SOIC-8_3.9x4.9mm_P1.27mm | U5 |
| 1 | SW3538_140W_Module | SW3538_140W_Module | MOD1 |
| 1 | IPB020N10N5LF Infineon | TO-263-3_TabPin2 | Q1 |
| 2 | 2N7002 | SOT-23 | Q2, Q3 |
| 1 | XT30PW(2+2)-M.G.B XT30PW(2+2) AMASS | Amass_XT30PW_2plus2_M_RightAngle_THT | J1 |
| 1 | TC2030-IDC-NL TC2030-IDC-NL SWD Tag-Connect | Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_Vertical | J2 |
| 1 | SKSCLCE010 ALPSALPINE | SW_ALPS_SKSCLCE010_SidePush | SW1 |
| 1 | WS2812B-4020-V6 Worldsemi | LED_Worldsemi_WS2812B-4020-V6_SideView | LED1 |
| 1 | SMCJ48A Zhuhai Hongjiacheng Technology | D_SMC_Silk0.15mm | D1 |
| 1 | PESD2CANFD27V-TR Nexperia | SOT-23 | D2 |
| 1 | PSPMAA0805-101M-ANP 100uH PROD Tech | L_PRODTech_PSPMAA0805 | L1 |
| 1 | ACT1210D-101-2P-TL00 TDK | L_CommonModeChoke_TDK_ACT1210D | L3 |
| 1 | CL31B105KCHNNNE 1uF 100V Samsung Electro-Mechanics | C_1206_3216Metric | C1 |
| 1 | 0603B684K160NT 680nF FH (Guangdong Fenghua Advanced Tech) | C_0603_1608Metric | C2 |
| 2 | CL32B225KCJSNNE 2.2uF 100V Samsung Electro-Mechanics | C_1210_3225Metric | C3, C4 |
| 2 | 0603B222K500NT 2.2nF 50V FH (Guangdong Fenghua Advanced Tech) | C_0603_1608Metric | C5, C6 |
Show 17 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CC0603JRNPO9BN221 220pF YAGEO | C_0603_1608Metric | C7 |
| 1 | CL21A226MAQNNNE 22uF 25V Samsung Electro-Mechanics | C_0805_2012Metric | C8 |
| 9 | CC0603KRX7R9BB104 100nF YAGEO | C_0603_1608Metric | C9, C10, C11, C12, C14, C15, C16, C17 +1 |
| 1 | CL10A475KO8NNNC 4.7uF Samsung Electro-Mechanics | C_0603_1608Metric | C13 |
| 1 | HoLLR2512-3W-6mR-1% 6mR 1% 3W | R_2512_6332Metric | R1 |
| 2 | 0603WAF1000T5E 100R UNI-ROYAL (Uniroyal Elec) | R_0603_1608Metric | R2, R32 |
| 2 | 0603WAF3602T5E 36k 1% UNI-ROYAL (Uniroyal Elec) | R_0603_1608Metric | R3, R9 |
| 5 | 0603WAF1103T5E 110k 1% UNI-ROYAL (Uniroyal Elec) | R_0603_1608Metric | R4, R6, R8, R13, R15 |
| 1 | 0603WAF1802T5E 18k 1% UNI-ROYAL (Uniroyal Elec) | R_0603_1608Metric | R5 |
| 1 | 0603WAF5101T5E 5.1k 1% UNI-ROYAL (Uniroyal Elec) | R_0603_1608Metric | R7 |
| 2 | 0603WAF1003T5E 100k UNI-ROYAL (Uniroyal Elec) | R_0603_1608Metric | R10, R31 |
| 5 | 0603WAF1002T5E 10k UNI-ROYAL (Uniroyal Elec) | R_0603_1608Metric | R11, R16, R19, R28, R30 |
| 1 | 0603WAF2702T5E 27k 1% UNI-ROYAL (Uniroyal Elec) | R_0603_1608Metric | R12 |
| 1 | 0603WAF6202T5E 62k 1% UNI-ROYAL (Uniroyal Elec) | R_0603_1608Metric | R14 |
| 2 | 0603WAF100JT5E 10R UNI-ROYAL (Uniroyal Elec) | R_0603_1608Metric | R17, R18 |
| 2 | 0603WAF2201T5E 2.2k UNI-ROYAL (Uniroyal Elec) | R_0603_1608Metric | R24, R25 |
| 1 | 0603WAF1200T5E 120R 1% UNI-ROYAL (Uniroyal Elec) | R_0603_1608Metric | R26 |
Mini Rack Power Carrier design files
The KiCad project lives in the kquinsland/modular-rack-mount-power-system repository on GitHub; these links point at the commit this page was built from.
Mini Rack Power Carrier: common questions
What microcontroller does the Mini Rack Power Carrier use?
The Mini Rack Power Carrier is built around the STM32C092GCU6, from the STM32 family.
How big is the Mini Rack Power Carrier PCB?
The Mini Rack Power Carrier measures 100 × 34.9 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Mini Rack Power Carrier?
61 components, from 37 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 Mini Rack Power Carrier design files?
From the kquinsland/modular-rack-mount-power-system 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 Mini Rack Power Carrier design in my own project?
The repository has no license, so all rights stay with kquinsland. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Mini Rack Power Carrier without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.
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