2 layers38.4 × 65.5 mm
2 layers60 × 60 mm
BMS PCB Layout
Sashank008/BMSSchematic, PCB Layout, Gerber Files and Hardware Documentation
- Size
- 60 × 60 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 56
- Nets
- 36
- Pads
- 129
- Tracks, vias
- 387, 34
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 30 Aug 2026
- Updated
- 30 Aug 2026
Overview
BMS PCB Layout is an open-source printed circuit board by Sashank008, from the Sashank008/BMS repository on GitHub. It is a 2-layer board of 60 × 60 mm with 56 parts on 36 nets, routed with 387 tracks and 34 vias.
It is built around the IRLZ44N and SI2371EDS. Its parts include 19 resistors, 15 capacitors, 4 diodes, 3 transistors and 3 connectors. It belongs with the power boards of this library.
Main components
2README
README.mdBMS
EV Battery Management System
Hardware design of a Battery Management System for Electric Vehicle applications.
Overview
Designed the BMS schematic and PCB using KiCad, with manufacturing-ready Gerber files.
Key Features
- Cell voltage monitoring
- Battery protection
- Temperature monitoring
- Current monitoring
- Cell balancing
- BMS control and monitoring
Design
- Schematic: KiCad
- PCB Layout: KiCad
- Manufacturing: Gerber files
- BMS IC: TI BQ76920
Files
| File | Description |
|---|---|
.kicad_sch | BMS schematic |
.kicad_pcb | PCB layout |
.zip | Gerber manufacturing files |
.pdf | BQ76920 datasheet |
Focus Areas
EV Systems | BMS | PCB Design | Battery Electronics | Embedded Systems
Parts
56| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 100 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2, R3, R4, R5, R6, R8, R11, R12, R14, R15, R20 |
| 11 | 1uf | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2, C3, C4, C5, C6, C9, C10, C11, C12, C14 |
| 8 | TestPoint | TestPoint:TestPoint_THTPad_D2.5mm_Drill1.2mm | 3V1, CH1, DS1, G1, G2, P-1, P+1, W1 |
| 2 | 0.1uf | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C7, C8 |
| 2 | 4.7K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R7, R10 |
| 2 | IRLZ44N | Package_TO_SOT_THT:TO-220-3_Vertical | Q3, Q4 |
| 1 | 0.005 | Resistor_SMD:R_2512_6332Metric_Pad1.40x3.35mm_HandSolder | R9 |
| 1 | 1000 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R13 |
| 1 | 2.2uf | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C15 |
| 1 | 3.1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R16 |
| 1 | 30V | Diode_SMD:D_SMB_Handsoldering | D2 |
| 1 | 4.7k | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C13 |
| 1 | 4.7k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R18 |
| 1 | 470 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R17 |
| 1 | BQ76920PW | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U1 |
| 1 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J2 |
| 1 | D | Diode_SMD:D_0201_0603Metric_Pad0.64x0.40mm_HandSolder | D1 |
| 1 | G*** | kibuzzard-69E92F47 | kibuzzard-69E92F47 |
| 1 | G*** | kibuzzard-69E93592 | kibuzzard-69E93592 |
| 1 | GREEN | LED_SMD:LED_0603_1608Metric | D4 |
| 1 | ICE BLUE | LED_SMD:LED_0603_1608Metric | D3 |
| 1 | SW_Push | Button_Switch_SMD:SW_Tactile_SPST_NO_Straight_CK_PTS636Sx25SMTRLFS | SW2 |
| 1 | Screw_Terminal_01x06 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MPT-0,5-6-2.54_1x06_P2.54mm_Horizontal | J1 |
| 1 | Si2371EDS | Package_TO_SOT_SMD:SOT-23 | Q2 |
Questions
How big is the BMS PCB Layout PCB?
It measures 60 × 60 mm and has 2 copper layers, 1.6 mm thick.
What parts does the BMS PCB Layout use?
56 parts, built around the IRLZ44N and SI2371EDS. 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 BMS PCB Layout KiCad files?
From the Sashank008/BMS repository on GitHub, at the commit this page was made from: the board is BMS PCB Layout.kicad_pcb and its schematic BMS Schematic.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the BMS PCB Layout design in my own project?
Its repository states no licence, so its author keeps all rights: ask Sashank008 before reusing the design.
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