2 layers177 × 114 mm
2 layers100 × 47 mm
PowerUnit Control
oosan1/OU_PowerUnit- Size
- 100 × 47 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 41
- Nets
- 15
- Pads
- 88
- Tracks, vias
- 43, 76
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 9 Jun 2026
- Updated
- 22 Jun 2026
Overview
PowerUnit Control is an open-source printed circuit board by oosan1, from the oosan1/OU_PowerUnit repository on GitHub. It is a 2-layer board of 100 × 47 mm with 41 parts on 15 nets, routed with 43 tracks and 76 vias.
It is built around the M78AR033-1, M78AR05-1 and XT30PW-M, with the SS56C, CC0603KRX7R9BB104 and CL31A106KBHNNNE among its other parts. Its parts include 11 connectors, 9 capacitors, 6 diodes, 5 resistors and 2 ICs.
Main components
8M78AR033-1
SIP,11.6x7.5mm-40℃~+85℃ 1 10.2mm 11.6mm 1A 2200uF 3.3V 300uA 50mVp-p 6V~36V 7.5mm 80%、90% 850kHz Plastic encapsulated type Short Circuit Protection、Automatic fault recovery Step-down type ±1% SIP,11.6x7.5mm DC-DC Power Modules ROHSYLPTECDC-DC Power Modules
M78AR05-1
SIP,11.6x7.5mm-40℃~+85℃ 1 10.2mm 11.6mm 1A 2200uF 300uA 50mVp-p 5V 7.5mm 7V~36V 85%、94% 850kHz Plastic encapsulated type Short Circuit Protection、Automatic fault recovery ±1% SIP,11.6x7.5mm DC-DC Power Modules ROHSYLPTECDC-DC Power Modules
XT30PW-M
-- Power connector / plug connector ROHSChangzhou Amass ElecUncategorised
SS56C
SMCSchottky Diodeshongjiacheng
CC0603KRX7R9BB104
0603100nF 50V X7R ±10% 0603 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSYAGEOMultilayer Ceramic Capacitors MLCC - SMD/SMT
CL31A106KBHNNNE
120610uF 50V X5R ±10% 1206 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMT
CL21A475KAQNNNE
080525V 4.7uF X5R ±10% 0805 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMTCL10A105KB8NNN
06031uF 50V X5R ±10% 0603 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMT
README
README.mdOU_PowerUnit
Parts
41| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | Conn_01x02_Pin | OU_Conn:Hirose_DF1EC-2P-2.5DSA_1x02_P2.5mm_Vertical | J2, J7, J8, J9, J10, J11 |
| 3 | Conn_01x02_Pin | OU_Conn:AMASS_XT30U-F | J4, J5, J6 |
| 3 | LED | LED_THT:LED_D5.0mm | D1, D4, D6 |
| 3 | SS56C | OU_Diode:DIODE_SS56C-HF_CIP | D2, D3, D5 |
| 2 | 0.1u | Capacitor_SMD:C_0603_1608Metric | C4, C8 |
| 2 | 1000u | Capacitor_THT:CP_Radial_D16.0mm_P7.50mm | C2, C6 |
| 2 | 10u | Capacitor_SMD:C_1206_3216Metric | C3, C7 |
| 2 | 4.7u | Capacitor_SMD:C_0805_2012Metric | C5, C9 |
| 1 | 1.5k | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 12k | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R4 |
| 1 | 1u | Capacitor_SMD:C_0603_1608Metric | C1 |
| 1 | 20k | OU_Reg:TRIM_3296W-1-250 | RV1 |
| 1 | 430 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R5 |
| 1 | 5A | OU_Fuse:FUC-03A | F1 |
| 1 | 7.5k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R1 |
| 1 | Conn_01x02_Pin | OU_Conn:AMASS_XT30PW-M | J1 |
| 1 | Conn_01x07_Socket | OU_Power:YDS512F-Unit | J3 |
| 1 | LOGO | OU_Picture:OkaLogo | G*** |
| 1 | M78AR033-1 | OU_Power:M78AR033-1 | U2 |
| 1 | M78AR05-1 | OU_Power:M78AR05-1 | U1 |
The 36 most common of 41 parts.
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Questions
How big is the PowerUnit Control PCB?
It measures 100 × 47 mm and has 2 copper layers, 1.6 mm thick.
What parts does the PowerUnit Control use?
41 parts, built around the M78AR033-1, M78AR05-1, XT30PW-M and SS56C. 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 PowerUnit Control KiCad files?
From the oosan1/OU_PowerUnit repository on GitHub, at the commit this page was made from: the board is Circuit/PowerUnit_Control/PowerUnit_Control.kicad_pcb and its schematic Circuit/Old/PowerUnit/PowerUnit.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the PowerUnit Control design in my own project?
Its repository states no licence, so its author keeps all rights: ask oosan1 before reusing the design.