4 layers165.2 × 72 mm
2 layers49 × 43 mm
Arming board
tudsat-rocket/arming_board1The new PCB for arming our rocket
- Size
- 49 × 43 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 44
- Nets
- 19
- Pads
- 131
- Tracks, vias
- 117, 578
- Pours
- 7
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 7 Feb 2026
- Updated
- 10 Sep 2026
Overview
Arming board is an open-source printed circuit board by tudsat-rocket, from the tudsat-rocket/arming_board repository on GitHub. It is a 2-layer board of 49 × 43 mm with 44 parts on 19 nets, routed with 117 tracks and 578 vias.
It is built around the CD4043BDR and TS1811LD-CX. Its parts include 10 resistors, 7 capacitors, 6 diodes, 6 connectors and 2 transistors.
Main components
2README
README.mdArming board
This repo contains the hardware design for the new arming board for our project Zepyhr. The arming board works with a flip-flop and a MOSFET. An external arming signal can set the flip-flop's state, which controls the MOSFETs.
Parts
44| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 22u | Capacitor_SMD:C_0805_2012Metric | C1, C2, C6, C7, C8 |
| 5 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP1, TP2, TP3, TP4, TP5 |
| 4 | 12k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R1, R5, R6, R7 |
| 4 | D | Diode_SMD:D_SOD-323_HandSoldering | D18, D19, D20, D21 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad_TopBottom | H1, H2, H3, H4 |
| 4 | ~ | Connector_Molex:Molex_Micro-Fit_3.0_43045-0400_2x02_P3.00mm_Horizontal | J1, J2, J4, J5 |
| 2 | 120R | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R3, R4 |
| 2 | 1k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R2, R8 |
| 2 | Conn_01x04 | Connector_Molex:Molex_Micro-Fit_3.0_43650-0400_1x04_P3.00mm_Horizontal | J3, J6 |
| 2 | TS1811LD-CX | Diode_SMD:D_SOD-523 | D7, D8 |
| 1 | 100n | Capacitor_SMD:C_0402_1005Metric | C4 |
| 1 | 10M | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R12 |
| 1 | 1M | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R11 |
| 1 | 1u | Capacitor_SMD:C_0402_1005Metric | C3 |
| 1 | CD4043BDR | Package_SO:SOIC-16_4.55x10.3mm_P1.27mm | IC1 |
| 1 | Fuse | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | LOGO | frodo_io_module:rapid_logo | G*** |
| 1 | PMOS | Package_TO_SOT_SMD:SOT-23 | Q3 |
| 1 | SJ_Bridged | Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP1 |
| 1 | SQJ409EP | Package_SO:PowerPAK_SO-8L_Single | Q2 |
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Questions
How big is the Arming board PCB?
It measures 49 × 43 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Arming board use?
44 parts, built around the CD4043BDR and TS1811LD-CX. 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 Arming board KiCad files?
From the tudsat-rocket/arming_board repository on GitHub, at the commit this page was made from: the board is arming_board.kicad_pcb and its schematic arming_board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Arming board design in my own project?
Its repository states no licence, so its author keeps all rights: ask tudsat-rocket before reusing the design.