# TPESD0504S6-A

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

TPESD0504S6-A from TECH PUBLIC, in a SOT-23-6L. 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 | Protected I/O line steered by diodes to the Vcc rail and GND, with 0.65pF typ. (Vcc floated) I/O-to-GND capacitance. |
| 2 | GND | power_in | Ground connection at the anode of the central TVS (zener) diode, with reverse stand-off voltage 5.0V max on the I/O lines. |
| 3 | I/O2 | passive | Protected I/O line steered by diodes to the Vcc rail and GND, rated for ±30kV IEC61000-4-2 ESD and 5A IEC61000-4-5 (8/20µs) surge. |
| 4 | I/O3 | passive | Protected I/O line steered by diodes to the Vcc rail and GND, with 16.5V typ. clamping voltage at IPP = 16A (TLP). |
| 5 | Vcc | power_in | Internal positive rail at the cathode of the central TVS diode; the datasheet gives capacitance both with Vcc floated and at Vcc = 5V. |
| 6 | I/O4 | passive | Protected I/O line steered by diodes to the Vcc rail and GND, with 0.35pF typ. I/O-to-I/O capacitance. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `TPESD0504S6-A`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6L (KiCad packages3D, STEP)
- 3D model files: `tpesd0504s6-a-etched.step` / `tpesd0504s6-a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tpesd0504s6-a.step` / `tpesd0504s6-a.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/8590182942225039360) (4 pp, sha256 `1b5088c1a0ac5dab`, retrieved 2026-10-18, 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/tpesd0504s6-a-datasheet.pdf)