2 layers80.2 × 55.5 mm
4 layers40 × 25.4 mm
Brushless ESC
OlivePrichard/Brushless-ESCJust messing around and seeing if I can make this work
- Size
- 40 × 25.4 mm
- Copper layers
- 4
- Thickness
- 1.61 mm
- Parts
- 63
- Nets
- 79
- Pads
- 310
- Tracks, vias
- 522, 82
- Pours
- 7
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 25 Apr 2025
- Updated
- 21 Aug 2025
Overview
Brushless ESC is an open-source printed circuit board by OlivePrichard, from the OlivePrichard/Brushless-ESC repository on GitHub. It is a 4-layer board of 40 × 25.4 mm with 63 parts on 79 nets, routed with 522 tracks and 82 vias.
It is built around the STM32G491CET6, MSS1P3L-M3 and NTCG103JF103F. Its parts include 18 capacitors, 14 resistors, 8 diodes, 6 transistors and 3 connectors. It belongs with the robots and motor control boards and the STM32 boards of this library.
Main components
3
STM32G491CET6
LQFP-48(7x7)-40℃~+85℃ 1.71V~3.6V 112KB 12bit 12bit 170MHz 32 Bit 38 512KB ARM Cortex-M4F Built-in FLASH LQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)MSS1P3L-M3
MicroSMP-55℃~+150℃ 1 Independent 15uA@30V 1A 25A 30V 440mV@1A MicroSMP Schottky Diodes ROHSVishay IntertechnologySchottky Diodes
NTCG103JF103F
0402100mW 10kΩ ±1% ±1% 0402 NTC Thermistors ROHSTDKNTC Thermistors
Parts
63| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 10 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R1, R2, R3, R4, R5, R6 |
| 6 | 100n | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C7, C11, C12, C13, C14, C15 |
| 6 | MSS1P3L | Diode_SMD:D_MicroSMP_AK | D1, D2, D3, D4, D5, D6 |
| 6 | NetTie_2 | NetTie:NetTie-2_SMD_Pad0.5mm | NT1, NT2, NT3, NT4, NT5, NT6 |
| 6 | Q_NMOS_SGD | Brushless ESC:2-5Q1S | Q1, Q2, Q3, Q4, Q5, Q6 |
| 3 | 100n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4, C5, C6 |
| 3 | 1m_1%_1W5 | Resistor_SMD:R_2010_5025Metric_Pad1.40x2.65mm_HandSolder | R7, R8, R9 |
| 3 | 470n | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C1, C2, C3 |
| 2 | 43R | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R13, R14 |
| 2 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J2, J3 |
| 2 | LED | Diode_SMD:D_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D7, D8 |
| 1 | 100u | Capacitor_SMD:CP_Elec_10x10 | C18 |
| 1 | 10u | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C17 |
| 1 | 1k_1% | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R12 |
| 1 | 1u | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C16 |
| 1 | 21k_1% | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R11 |
| 1 | 22n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C10 |
| 1 | 2k2_1% | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R10 |
| 1 | 2u2 | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C9 |
| 1 | 4u7 | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C8 |
| 1 | Battery | Connector_AMASS:AMASS_XT30U-F_1x02_P5.0mm_Vertical | BT1 |
| 1 | Conn_01x06 | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J1 |
| 1 | NTCG103JF103 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | TH1 |
| 1 | NetTie_2 | NetTie:NetTie-2_THT_Pad0.3mm | NT7 |
| 1 | STM32G491CET6 | Package_QFP:LQFP-48_7x7mm_P0.5mm | U2 |
| 1 | U Phase Hole | Connector_Wire:SolderWire-2.5sqmm_1x01_D2.4mm_OD4.4mm | H1 |
| 1 | V Phase Hole | Connector_Wire:SolderWire-2.5sqmm_1x01_D2.4mm_OD4.4mm | H2 |
| 1 | W Phase Hole | Connector_Wire:SolderWire-2.5sqmm_1x01_D2.4mm_OD4.4mm | H3 |
| 1 | ~ | Package_QFP:TQFP-48-1EP_7x7mm_P0.5mm_EP5x5mm | U1 |
Questions
How big is the Brushless ESC PCB?
It measures 40 × 25.4 mm and has 4 copper layers, 1.61 mm thick.
What parts does the Brushless ESC use?
63 parts, built around the STM32G491CET6, MSS1P3L-M3 and NTCG103JF103F. 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 Brushless ESC KiCad files?
From the OlivePrichard/Brushless-ESC repository on GitHub, at the commit this page was made from: the board is Brushless ESC.kicad_pcb and its schematic Brushless ESC.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Brushless ESC design in my own project?
Its repository states no licence, so its author keeps all rights: ask OlivePrichard before reusing the design.
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