# TPDT1042-04SO-7

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

TPDT1042-04SO-7 from TECH PUBLIC, 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/O1 | passive | TVS protected data line 1; reverse working voltage 5V max to ground, 0.8pF max to ground. |
| 2 | Vss | power_in | Ground reference (Vss/GND) of the TVS array, to which the I/O clamping diodes return. |
| 3 | I/O2 | passive | TVS protected data line 2; reverse working voltage 5V max to ground, 0.8pF max to ground. |
| 4 | I/O3 | passive | TVS protected data line 3; reverse working voltage 5V max to ground, 0.8pF max to ground. |
| 5 | Vcc | power_in | Positive supply/power line protected by the internal TVS diode, with 300W peak pulse power (8/20µs, Vcc-GND) and 18V max clamping at 17A. |
| 6 | I/O4 | passive | TVS protected data line 4; reverse working voltage 5V max to ground, 0.8pF max to ground. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `TPDT1042-04SO-7`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `tpdt1042-04so-7-etched.step` / `tpdt1042-04so-7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tpdt1042-04so-7.step` / `tpdt1042-04so-7.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TECH PUBLIC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589041682796433408) (4 pp, sha256 `1d2d1628316f7771`, retrieved 2026-10-15, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (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/tpdt1042-04so-7-datasheet.pdf)