# TPSP0504BAHTG

**TECH PUBLIC** · ESD And Surge Protection (TVS/ESD) · SOT-23-5

TPSP0504BAHTG from TECH PUBLIC, in a SOT-23-5. 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 | TVS diode channel 1 protected line (unidirectional, to common pin 2), 5.5V max reverse working voltage. |
| 2 | GND | power_in | Common cathode/ground return shared by all four TVS channels. |
| 3 | IO2 | passive | TVS diode channel 2 protected line (unidirectional, to common pin 2), 5.5V max reverse working voltage. |
| 4 | IO3 | passive | TVS diode channel 3 protected line (unidirectional, to common pin 2), 5.5V max reverse working voltage. |
| 5 | IO4 | passive | TVS diode channel 4 protected line (unidirectional, to common pin 2), 5.5V max reverse working voltage. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOT-23-5 |
| Category | Circuit Protection |
| Pins | 5 |

## CAD (KiCad official)

- Symbol: `TPSP0504BAHTG`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `tpsp0504bahtg-etched.step` / `tpsp0504bahtg-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tpsp0504bahtg.step` / `tpsp0504bahtg.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/8588919422409191424) (4 pp, sha256 `af57a0d4affe9bc1`, retrieved 2026-10-09, 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/tpsp0504bahtg-datasheet.pdf)