# ESD5302F-MS

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

ESD5302F-MS from MSKSEMI, 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 | I/O1 | passive | ESD-protected I/O line 1 (0.40 pF typ. to GND, 5V max stand-off, ±20kV IEC61000-4-2 contact and air). |
| 2 | I/O2 | passive | ESD-protected I/O line 2 (0.40 pF typ. to GND, 5V max stand-off, ±20kV IEC61000-4-2 contact and air). |
| 3 | GND | power_in | Ground reference for the TVS protection diodes of both I/O lines. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `ESD5302F-MS`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `esd5302f-ms-etched.step` / `esd5302f-ms-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esd5302f-ms.step` / `esd5302f-ms.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MSKSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588954945404489728) (5 pp, sha256 `5bdd984899e98c41`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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/esd5302f-ms-datasheet.pdf)