# BNAZ1045-04SU

**BORN** · ESD And Surge Protection (TVS/ESD) · SOT-23-6

BNAZ1045-04SU from BORN, in a SOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | I/O | passive | ESD-protected data line I/O, steered by diodes to VCC and GND, with 0.25pF typ IO-to-IO capacitance. |
| 2 | GND | power_in | Ground reference for the ESD protection diodes and the central avalanche clamp. |
| 3 | I/O | passive | ESD-protected data line I/O, steered by diodes to VCC and GND, with 0.25pF typ IO-to-IO capacitance. |
| 4 | I/O | passive | ESD-protected data line I/O, steered by diodes to VCC and GND, with 0.25pF typ IO-to-IO capacitance. |
| 5 | VCC | power_in | Supply/power line connection of the steering diodes, with reverse stand-off voltage VRWM of 5.0V max. |
| 6 | I/O | passive | ESD-protected data line I/O, steered by diodes to VCC and GND, with 0.25pF typ IO-to-IO capacitance. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | BORN |
| Package | SOT-23-6 |
| Category | Circuit Protection |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `BNAZ1045-04SU`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `bnaz1045-04su-etched.step` / `bnaz1045-04su-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bnaz1045-04su.step` / `bnaz1045-04su.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [BORN datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590931220463235072) (4 pp, sha256 `baa9bd4fd75c869d`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/bnaz1045-04su-datasheet.pdf)