E-Stop
About the E-Stop PCB
E-Stop is an open source PCB design by SJSURoboticsTeam, published on GitHub. It is a 2-layer board measuring 84.5 × 84.5 mm, with 35 components from 24 distinct parts.
Other key parts include the LMV358, MCP1792x-3302xDB, NL17SZ74USG and 74LVC1G08. By type, the board carries 11 resistors, 6 transistors, 6 connectors, 5 ICs, 5 capacitors and 1 relay.
From the project
The 2024 - 2026 rover electrical monorepo
This is the repository for the SJSU Robotics Club Electrical team repository from 2024-2026.
Main components on the E-Stop
E-Stop bill of materials (BOM)
35 components, 24 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LMV358 | SOIC-8_5.3x6.2mm_P1.27mm | U1 |
| 1 | MCP1792x-3302xDB | SOT-223-3_TabPin2 | U2 |
| 1 | NL17SZ74USG | VFSOP8_2P1X2P4_ONS | U3 |
| 2 | 74LVC1G08 | SOT-23-6 | U4, U6 |
| 2 | DMMT5401 | SOT-23-6 | Q1, Q2 |
| 2 | IRFR9014PBF | TO-252-2 | Q3, Q4 |
| 2 | BSS138 | SOT-23 | Q5, Q6 |
| 2 | Input | AMASS_XT60PW-F_1x02_P7.20mm_Horizontal | J1, J2 |
| 1 | Conn_01x03_Pin | TerminalBlock_Phoenix_MPT-0,5-3-2.54_1x03_P2.54mm_Horizontal | J3 |
| 1 | Conn_01x04_Pin | PinHeader_1x04_P1.00mm_Vertical | J4 |
| 1 | Output | AMASS_XT60-F_1x02_P7.20mm_Vertical | J5 |
| 1 | Conn_01x02_Pin | Pluggable_Terminal_2.54mm_4P_Vertical | J6 |
| 1 | 5-1393243-9 | RELAY-SPDT_5mm | K1 |
| 1 | SB120 | D_SMA | D1 |
| 1 | 1u | C_0603_1608Metric | C1 |
| 3 | 2.2uF | C_0603_1608Metric | C2, C3, C4 |
| 1 | C_US | CP_Radial_D5.0mm_P2.00mm | C5 |
| 4 | 10k | R_0603_1608Metric | R1, R6, R7, R12 |
| 1 | 20k | R_0603_1608Metric | R2 |
| 1 | 5k | R_0603_1608Metric | R3 |
Show 4 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 100k | R_0603_1608Metric | R4 |
| 1 | 206k | R_0603_1608Metric | R5 |
| 2 | 47K | R_0603_1608Metric | R8, R9 |
| 1 | Current Limiter | NTC_Current_Limiting | R10 |
E-Stop design files
The KiCad project lives in the SJSURoboticsTeam/urc-electrical-2026 repository on GitHub; these links point at the commit this page was built from.
- LayoutE-Stop/E-Stop.kicad_pcb
- SchematicE-Stop/E-Stop.kicad_sch
E-Stop: common questions
How big is the E-Stop PCB?
The E-Stop measures 84.5 × 84.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the E-Stop?
35 components, from 24 distinct parts. The full bill of materials is listed on this page.
Where can I download the E-Stop design files?
From the SJSURoboticsTeam/urc-electrical-2026 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the E-Stop design in my own project?
The repository has no license, so all rights stay with SJSURoboticsTeam. Use it as a reference, and ask the author before reusing the design.
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