2 layers243.2 × 106 mm
4 layers55 × 100 mm
Rack manager
KargJonas/minirackPersonal MiniRack-format Server
- Size
- 55 × 100 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 98
- Nets
- 95
- Pads
- 381
- Tracks, vias
- 982, 122
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 8 Jul 2026
- Updated
- 18 Oct 2026
Overview
Rack manager is an open-source printed circuit board by KargJonas, from the KargJonas/minirack repository on GitHub. It is a 4-layer board of 55 × 100 mm with 98 parts on 95 nets, routed with 982 tracks and 122 vias.
It is built around the PCA9555PW and TS-1088-AR02016. Its parts include 34 resistors, 30 capacitors, 23 connectors, 3 ICs and 1 switch.
Main components
2
PCA9555PW
TSSOP-24-40℃~+85℃ 1.1uA 16 2.3V~5.5V 3mA 400kHz 8 I2C、SMBus Interrupt Output Reset function、Cascade and address expansion TSSOP-24 I/O Expanders ROHSNXP SemiconductorsI/O Expanders
TS-1088-AR02016
SMD,4x3mm-30℃~+80℃ 1.6N 100,000 cycles 12V 2mm 3.9mm 3mm 50mA Black Round Button SMD(SMT) Tab SPST Surface Mount,Vertical Without Bracket SMD,4x3mm Tactile Switches ROHSXUNPUTactile Switches
Parts
98| Qty | Value | Footprint | References |
|---|---|---|---|
| 17 | 10k | Resistor_SMD:R_0603_1608Metric | R14, R19, R20, R21, R22, R23, R24, R25, R26, R27, R28, R29, R30, R31, R32, R33 +1 |
| 14 | 1k | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R15, R16 |
| 10 | Screw_Terminal_01x02 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1-2-3.81_1x02_P3.81mm_Horizontal | J1, J2, J3, J4, J5, J6, J7, J8, J9, J10 |
| 9 | Conn_01x04_Socket | Connector_JST:JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J13, J16, J17, J18, J19, J20, J21, J22, J23 |
| 8 | 1uF | Capacitor_SMD:C_0603_1608Metric | C13, C14, C15, C19, C20, C21, C24, C26 |
| 7 | 100nF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C23, C25, C27, C28 |
| 6 | 10nF | Capacitor_SMD:C_0603_1608Metric | C7, C8, C9, C10, C11, C12 |
| 5 | 10uF | Capacitor_SMD:C_0603_1608Metric | C4, C5, C6, C29, C30 |
| 3 | 220nF | Capacitor_SMD:C_0603_1608Metric | C16, C17, C18 |
| 3 | ADS131M02IRUKR | Package_DFN_QFN:WQFN-20-1EP_3x3mm_P0.4mm_EP1.7x1.7mm | ADC1, ADC2, ADC3 |
| 3 | MountingHole | MountingHole:MountingHole_4.3mm_M4_ISO14580_Pad_TopBottom | H1, H2, H3 |
| 2 | 4.7k | Resistor_SMD:R_0603_1608Metric | R17, R18 |
| 2 | Conn_02x06_Odd_Even | Connector_IDC:IDC-Header_2x06_P2.54mm_Vertical | J24, J25 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R13 |
| 1 | 200uF | Capacitor_THT:CP_Radial_D8.0mm_P3.50mm | C22 |
| 1 | C720477 | Button_Switch_SMD:SW_Push_SPST_NO_Alps_SKRK | SW1 |
| 1 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J12 |
| 1 | Conn_02x03_Odd_Even | Connector_IDC:IDC-Header_2x03_P2.54mm_Vertical | J11 |
| 1 | LOGO | LOGO | G*** |
| 1 | PCA9555PW | Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm | U6 |
| 1 | TCA9548AMRGER | Package_DFN_QFN:Texas_RGE0024C_VQFN-24-1EP_4x4mm_P0.5mm_EP2.1x2.1mm | U5 |
| 1 | ~ | rack-manager:WT32-ETH01 | U4 |
Questions
How big is the Rack manager PCB?
It measures 55 × 100 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Rack manager use?
98 parts, built around the PCA9555PW and TS-1088-AR02016. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Rack manager KiCad files?
From the KargJonas/minirack repository on GitHub, at the commit this page was made from: the board is rack-manager/eda/rack-manager/rack-manager/rack-manager.kicad_pcb and its schematic rack-manager/eda/rack-manager/rack-manager/rack-manager.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Rack manager design in my own project?
Its repository states no licence, so its author keeps all rights: ask KargJonas before reusing the design.
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