2 layers74 × 44 mm
2 layers100 × 100 mm
Control unit
queezz/controlunig-pcb- Size
- 100 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 91
- Nets
- 70
- Pads
- 298
- Tracks, vias
- 317, 327
- Pours
- 7
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 13 Sep 2025
- Updated
- 9 Aug 2026
Overview
Control unit is an open-source printed circuit board by queezz, from the queezz/controlunig-pcb repository on GitHub. It is a 2-layer board of 100 × 100 mm with 91 parts on 70 nets, routed with 317 tracks and 327 vias.
It is built around the B0505S-1WR2, AP2171WG and TPS259535DSGT. Its parts include 27 capacitors, 16 resistors, 12 connectors, 6 ICs and 6 diodes.
Main components
3
B0505S-1WR2
SIP,11.7x6mm-40℃~+85℃ 1.5kV 10.15mm 11.68mm 1W 200mA 200uF 4.5V~5.5V 5V 60mVp-p 6mm 80% 80kHz Short Circuit Protection SIP,11.7x6mm Isolated Power Modules ROHSEVISUNIsolated Power Modules
AP2171WG
SOT-25-5-40℃~+85℃ 1 1A 2.7V~5.5V 95mΩ Active High High Side Switch Overcurrent Protection(OCP)、Overtemperature protection (OTP) SOT-25-5 Power Distribution Switches ROHSDiodes IncorporatedPower Distribution SwitchesTPS259535DSGT
WSON-8(2x2)-40℃~+125℃@(Tj) 2.7V~18V WSON-8(2x2) Surge Protection Devices (SPDs) ROHSTexas InstrumentsSurge Protection Devices (SPDs)
Parts
91| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | TestPoint | TestPoint:TestPoint_Pad_1.0x1.0mm | TP_EN1, TP_EN2, TP_GND1, TP_GND2, TP_ILM1, TP_ILM2, TP_IN1, TP_IN2, TP_OUT1, TP_OUT2 |
| 5 | 1k | Resistor_SMD:R_0603_1608Metric | R1, R3, R13, R14, R15 |
| 5 | 1µF | Capacitor_SMD:C_0603_1608Metric | C1, C9, C15, C19, C22 |
| 4 | 0.1µF | Capacitor_SMD:C_0603_1608Metric | C8, C16, C25, C27 |
| 4 | 100nF | Capacitor_SMD:C_0603_1608Metric | C5, C10, C11, C18 |
| 4 | 10µF | Capacitor_SMD:C_0603_1608Metric | C4, C12, C20, C21 |
| 4 | MountingHole | queezz:MountingHole_3.2mm | H5, H6, H7, H8 |
| 4 | MountingHole | queezz:MountingHole_2.7mm | H1, H2, H3, H4 |
| 3 | AP2171W | Package_TO_SOT_SMD:SOT-23-5 | U1, U4, U6 |
| 3 | Conn_01x02_Pin | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J3, J4, J9 |
| 3 | D_TVS | Diode_SMD:D_SOD-323_HandSoldering | D2, D3, D4 |
| 3 | LED | LED_SMD:LED_0603_1608Metric | D1, D5, D6 |
| 2 | 0 | Resistor_SMD:R_0603_1608Metric | R6, R9 |
| 2 | 100k | Resistor_SMD:R_0603_1608Metric | R2, R12 |
| 2 | 100µF | Capacitor_SMD:CP_Elec_6.3x5.8 | C7, C17 |
| 2 | 1M | Resistor_SMD:R_0603_1608Metric | R5, R7 |
| 2 | 1nF | Capacitor_SMD:C_0603_1608Metric | C3, C13 |
| 2 | 330 | Resistor_SMD:R_0603_1608Metric | R4, R16 |
| 2 | 4.7nF | Capacitor_SMD:C_0603_1608Metric | C6, C14 |
| 2 | 4.7µF | Capacitor_SMD:C_0603_1608Metric | C2, C23 |
| 2 | 620 | Resistor_SMD:R_0603_1608Metric | R8, R10 |
| 2 | Conn_02x20_Odd_Even | queezz:RasPiHeader_2x20_P2.54mm_Vertical | J1, J2 |
| 2 | LOGO | LOGO | G***, G*** |
| 2 | NetTie_2 | NetTie:NetTie-2_SMD_Pad2.0mm | NT1, NT2 |
| 2 | TPS259535DSGT | Package_SON:WSON-8-1EP_3x3mm_P0.5mm_EP1.6x2.0mm | U3, U5 |
| 2 | USB_A | queezz:USB_A_Molex_67643_Horizontal | J7, J8 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric | R11 |
| 1 | 10µF | Capacitor_SMD:C_0805_2012Metric | C24 |
| 1 | 10µF | Capacitor_SMD:C_1206_3216Metric | C26 |
| 1 | B0505S-1WR2 | queezz:B0505S-1WR2_MNS | U2 |
| 1 | Conn_01x02_Pin | queezz:JST_VH_B2P-VH-B_1x02_P3.96mm_Vertical | J10 |
| 1 | Conn_01x03_Pin | Connector_JST:JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J11 |
| 1 | Conn_01x06_Pin | queezz:MCP4725_module | J5 |
| 1 | Conn_02x06_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x06_P2.54mm_Vertical | J12 |
| 1 | FerriteBead | Resistor_SMD:R_0603_1608Metric | FB1 |
| 1 | FerriteBead | Resistor_SMD:R_0805_2012Metric | FB2 |
| 1 | Isolator_ISO1540_I2C | queezz:Isolator_ISO_1540_module | J6 |
Questions
How big is the Control unit PCB?
It measures 100 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Control unit use?
91 parts, built around the B0505S-1WR2, AP2171WG and TPS259535DSGT. 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 Control unit KiCad files?
From the queezz/controlunig-pcb repository on GitHub, at the commit this page was made from: the board is pihat-breakout/control-unit.kicad_pcb and its schematic panel-bncs/panel-bncs.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Control unit design in my own project?
Its repository states no licence, so its author keeps all rights: ask queezz before reusing the design.
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