# ESD5451N-2

**WILLSEMI Will Semicon** · ESD And Surge Protection (TVS/ESD) · DFN1006-2L

ESD5451N-2 from WILLSEMI Will Semicon, in a DFN1006-2L. 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 | Pin1 | passive | One terminal of the bi-directional TVS line, rated for a reverse stand-off voltage of ±5V max with 9V typ clamping at IPP = 16A (TLP). |
| 2 | Pin2 | passive | The other terminal of the bi-directional TVS line, rated for a reverse stand-off voltage of ±5V max with 9V typ clamping at IPP = 16A (TLP). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | WILLSEMI Will Semicon |
| Package | DFN1006-2L |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `ESD5451N-2`
- Footprint: `Diode_SMD:D_SOD-882`
- 3D model: DFN1006-2L (KiCad packages3D, STEP)
- 3D model files: `esd5451n-2-etched.step` / `esd5451n-2-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esd5451n-2.step` / `esd5451n-2.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [WILLSEMI Will Semicon datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588893696112254976) (7 pp, sha256 `d00d7d965f83c185`, retrieved 2026-10-12, 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/esd5451n-2-datasheet.pdf)