# ESD5451N-MS

**MSKSEMI** · ESD And Surge Protection (TVS/ESD) · DFN1006-2

ESD5451N-MS from MSKSEMI, in a DFN1006-2. 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 | Bi-directional TVS terminal (interchangeable with pin 2) connected to the protected data, control or power line, with VRWM 5.0V, VBR 5.6V min at 1mA and CJ 15pF max. |
| 2 | 2 | passive | Bi-directional TVS terminal (interchangeable with pin 1) connected to the return/ground or second line side, with VRWM 5.0V and clamping of 12V max at IPP=5A (8/20us). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| Package | DFN1006-2 |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `ESD5451N-MS`
- Footprint: `Diode_SMD:D_SOD-882`
- 3D model: DFN1006-2 (KiCad packages3D, STEP)
- 3D model files: `esd5451n-ms-etched.step` / `esd5451n-ms-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esd5451n-ms.step` / `esd5451n-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/8588903250875584512) (6 pp, sha256 `7dd0fa796e6bfda8`, retrieved 2026-10-12, 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/esd5451n-ms-datasheet.pdf)