Power Distribution Unit
AssemblySwitched power bus that takes battery power and feeds the flight computers, valve drivers, actuators and pyro circuits; two run in parallel so a single box failure never dark-buses the stage. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Power Distribution Unit
6 top-level lines as of r141144| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Bare PCB | pcb-bare | 4× | 4 | · | part |
| 2 | Microcontroller | mcu | 2× | 2 | · | part |
| 3 | Relay | relay | 32× | 32 | · | part |
| 4 | SMD Passive (R/C/L) | smd-passives | 2400× | 2,400 | · | part |
| 5 | Connector | connector | 48× | 48 | · | part |
| 6 | Wire Bundle | wire-bundle | 1× | 1 | · | part |