# ESD5681N12-2

**WILLSEMI(Will Semicon)** · TVS · DFN1006-2L

ESD5681N12-2 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 of the two terminals of the uni-directional TVS, with the device ratings measured from pin 1 to pin 2 and a reverse stand-off voltage VRWM of 12 V for the ESD5681N12 variant. |
| 2 | Pin2 | passive | The other terminal of the uni-directional TVS, paired with pin 1 for the stated ratings, including a peak pulse current IPP of 18 A (8/20 µs) and ESD protection of ±30 kV per IEC61000-4-2 for the ESD5681N12 variant. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `ESD5681N12-2`
- Footprint: `Diode_SMD:D_SOD-882`
- 3D model: DFN1006-2L (KiCad packages3D, STEP)
- 3D model files: `esd5681n12-2-etched.step` / `esd5681n12-2-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esd5681n12-2.step` / `esd5681n12-2.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [WILLSEMI(Will Semicon) datasheet](docs/esd5681n12-2-datasheet.pdf) (6 pp, sha256 `2fde214b9db31fba`, retrieved 2026-10-21, 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/esd5681n12-2-datasheet.pdf)