# TPD4E001DCKR-TP

**TECH PUBLIC** · ESD And Surge Protection (TVS/ESD) · SOT-363

TPD4E001DCKR-TP from TECH PUBLIC, in a SOT-363. 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 | IO1 | passive | ESD-protected I/O line 1; low-capacitance channel (1.5pF max) with working peak reverse voltage 5.5V max. |
| 2 | GND | power_in | Ground reference for the ESD protection array. |
| 3 | IO2 | passive | ESD-protected I/O line 2; low-capacitance channel (1.5pF max) with working peak reverse voltage 5.5V max. |
| 4 | IO3 | passive | ESD-protected I/O line 3; low-capacitance channel (1.5pF max) with working peak reverse voltage 5.5V max. |
| 5 | VCC | power_in | Supply/reference pin of the ESD protection array; working peak reverse voltage 5.5V max. |
| 6 | IO4 | passive | ESD-protected I/O line 4; low-capacitance channel (1.5pF max) with working peak reverse voltage 5.5V max. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOT-363 |
| Category | Circuit Protection |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `TPD4E001DCKR-TP`
- Footprint: `Package_TO_SOT_SMD:SOT-363_SC-70-6`
- 3D model: SOT-363 (KiCad packages3D, STEP)
- 3D model files: `tpd4e001dckr-tp-etched.step` / `tpd4e001dckr-tp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tpd4e001dckr-tp.step` / `tpd4e001dckr-tp.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/8590228653373362176) (4 pp, sha256 `4cc0614b1d1a19ae`, retrieved 2026-10-17, 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/tpd4e001dckr-tp-datasheet.pdf)