# PESD12VS1UL

**Nexperia** · TVS · DFN1006-2

PESD12VS1UL from Nexperia, 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 | K | passive | Cathode of the unidirectional ESD protection diode; the marking bar on the package indicates the cathode. |
| 2 | A | passive | Anode of the unidirectional ESD protection diode, connected to the ground side of the protected line. |

## Key specifications

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

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Reverse standoff voltage | VRWM |  |  | 12 | V | Tamb = 25 °C | 3 |
| Breakdown voltage | VBR | 14.7 | 15 | 15.3 | V | IR = 5 mA; Tamb = 25 °C | 3 |
| Reverse leakage current | IRM |  | 1 | 50 | nA | VRWM = 12 V; Tamb = 25 °C | 3 |
| Diode capacitance | Cd |  | 38 | 75 | pF | f = 1 MHz; VR = 0 V; Tamb = 25 °C | 3 |
| Clamping voltage | VCL |  |  | 19 | V | IPP = 1 A; Tamb = 25 °C | 3 |
| Clamping voltage | VCL |  |  | 35 | V | IPPM = 5 A; Tamb = 25 °C | 3 |
| Differential resistance | rdif |  |  | 200 | Ω | IR = 1 mA; Tamb = 25 °C | 3 |
| Rated peak pulse power | PPPM |  |  | 150 | W |  | 2 |
| Rated peak pulse current | IPPM |  |  | 5 | A | tp = 8/20 µs | 2 |
| Junction temperature | Tj |  |  | 150 | °C |  | 2 |
| Ambient temperature | Tamb | -55 |  | 150 | °C |  | 2 |
| Storage temperature | Tstg | -65 |  | 150 | °C |  | 2 |
| Electrostatic discharge voltage | VESD |  |  | 30 | kV | IEC 61000-4-2 (contact discharge) | 2 |
| Electrostatic discharge voltage | VESD |  |  | 10 | kV | MIL-STD-883 (human body model) | 2 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| housing | pet |  | voltage MIL-STD-883 (human body model) [2] - 10 kV [1] Non-repetitive current pulse 8/20 µs exponential decay waveform according to IEC61000-4-5. | 2 |

## CAD (KiCad official)

- Symbol: `PESD12VS1UL`
- Footprint: `Diode_SMD:D_SOD-882`
- 3D model: DFN1006-2 (KiCad packages3D, STEP)
- 3D model files: `pesd12vs1ul-etched.step` / `pesd12vs1ul-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pesd12vs1ul.step` / `pesd12vs1ul.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Nexperia datasheet](https://assets.nexperia.com/documents/data-sheet/PESD12VS1UL.pdf) (11 pp, sha256 `537846d3b9b67d50`, retrieved 2026-10-21, tier: manufacturer)
- **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/pesd12vs1ul-datasheet.pdf)