# PESD2USB3UV-TR

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

PESD2USB3UV-TR from Nexperia, 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 | K1 | passive | Cathode of diode 1; ratings such as breakdown voltage and capacitance are measured from pin 1 to pin 3 (common anode). |
| 2 | K2 | passive | Cathode of diode 2; ratings such as breakdown voltage and capacitance are measured from pin 2 to pin 3 (common anode). |
| 3 | CA | passive | Common anode shared by both ESD diodes and the reference terminal for all pin 1 and pin 2 measurements. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `PESD2USB3UV-TR`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `pesd2usb3uv-tr-etched.step` / `pesd2usb3uv-tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pesd2usb3uv-tr.step` / `pesd2usb3uv-tr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Nexperia datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589836792301191168) (12 pp, sha256 `f63451e4af9a9329`, 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/pesd2usb3uv-tr-datasheet.pdf)