# HGL05T-HG3-08

**HXY MOSFET** · ESD And Surge Protection (TVS/ESD) · SOT-23

HGL05T-HG3-08 from HXY MOSFET, in a SOT-23. 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 | 1 | passive | Protected-line terminal on the left of the TVS diode symbol, for a unidirectional 5V working-voltage line (VRWM max 5V, breakdown min 6V at 1mA). |
| 2 | 2 | passive | Terminal on the right of the TVS diode symbol, on the opposite side of the diode element from pin 1, for the 5V unidirectional protection (VRWM max 5V). |
| 3 | 3 | passive | Terminal at the top of the TVS diode symbol, joined to the centre bar of the diode element, with the datasheet giving no further function. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HXY MOSFET |
| Package | SOT-23 |
| Category | Circuit Protection |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `HGL05T-HG3-08`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `hgl05t-hg3-08-etched.step` / `hgl05t-hg3-08-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `hgl05t-hg3-08.step` / `hgl05t-hg3-08.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HXY MOSFET datasheet](docs/hgl05t-hg3-08-datasheet.pdf) (4 pp, sha256 `5b89e2d091a4db37`, retrieved 2026-11-02, 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/hgl05t-hg3-08-datasheet.pdf)