T430 Revision A BOM notes
The purchased BOM records the parts used for Revision A. The schematic is the source for designators, values, and connectivity. Do not reconstruct the board from this page alone.
Revision A used parts that were practical for hand assembly and low-volume LCSC purchasing. Important devices included:
| Function | Part |
|---|---|
| Wireless MCU module | HolyIOT 18010-A, nRF52840 |
| Charger and power path | ETA6002E8A |
| 3.0 V regulator | ME6211C30M5G-N |
| 5 V boost converter | SY7069ADC |
| USB current limiter | SY6280AAC |
| USB ESD protection | USBLC6-2SC6 |
| Level shifting and signal sinks | BSS138 |
| High-side power switches | YJL3401A |
| USB-C connector | TYPE-C-31-M-12 |
| Battery connector | JST S2B-PH-SM4-TB |
| SWD footprint | Tag-Connect TC2050-IDC-NL |
Exact manufacturer documents are in the datasheet library.
Selection rules
- Use a protected, single-cell 4.2 V Li-ion or LiPo battery.
- Verify the HolyIOT top-view pad numbering against the exact module drawing.
- Check every footprint against the selected manufacturer's drawing.
- Use resistor arrays only when they contain independent resistors.
- Keep the USB, battery, TrackPoint, backlight, and logic voltage domains clear.
- Treat stock and catalogue numbers as purchasing records, not substitute specifications.
Revision B replaces the Revision A charger and power-path design. See the deferred changes.