# PESD2ETH-XR

**Nexperia** · ESD Protection Devices · SOT-143

PESD2ETH-XR from Nexperia, in a SOT-143. 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 | GND | power_in | Ground reference for the ESD protection diodes. |
| 2 | I/O 1 | bidirectional | Protected input/output line 1 with 1 pF typical (1.5 pF max) capacitance to ground and 0.6 pF typical to pin 3. |
| 3 | I/O 2 | bidirectional | Protected input/output line 2 with 1 pF typical (1.5 pF max) capacitance to ground and 0.6 pF typical to pin 2. |
| 4 | VCC | power_in | Supply line connection with 16 pF typical capacitance to ground; reverse standoff voltage max 5.5 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| Package | SOT-143 |
| Category | Circuit Protection |
| Pins | 4 |

## 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 |  |  | 5.5 | V | Tamb = 25 °C | 4 |
| Breakdown voltage | VBR | 6 |  | 9 | V | IR = 1 mA; Tamb = 25 °C; measured from pin 4 to ground | 4 |
| Reverse current | IR |  | 1 | 100 | nA | VR = 3 V; Tamb = 25 °C; measured from pin 2, 3 and 4 to ground | 4 |
| Diode capacitance (pin 2 and 3 to ground) | Cd |  | 1 | 1.5 | pF | f = 1 MHz; VR = 0 V; Tamb = 25 °C | 4 |
| Forward voltage | VF |  | 0.7 |  | V | IF = 1 mA; Tamb = 25 °C; measured from pin 2 and 3 to ground | 4 |
| Diode capacitance (pin 2 to pin 3) | Cd |  | 0.6 |  | pF | f = 1 MHz; VR = 0 V; Tamb = 25 °C | 4 |
| Diode capacitance (pin 4 to ground) | Cd |  | 16 |  | pF | f = 1 MHz; VR = 0 V; Tamb = 25 °C | 4 |
| Ambient temperature | Tamb | -40 |  | 125 | °C |  | 3 |
| Storage temperature | Tstg | -55 |  | 125 | °C |  | 3 |
| Electrostatic discharge voltage | VESD |  |  | 8 | kV | IEC 61000-4-2; level 4; contact discharge | 3 |

## CAD (KiCad official)

- Symbol: `PESD2ETH-XR`
- Footprint: `Package_TO_SOT_SMD:SOT-143`
- 3D model: SOT-143 (KiCad packages3D, STEP)
- 3D model files: `pesd2eth-xr-etched.step` / `pesd2eth-xr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pesd2eth-xr.step` / `pesd2eth-xr.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/PESD2ETH-X.pdf) (11 pp, sha256 `377bde289da1ffb4`, retrieved 2026-10-31, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/pesd2eth-xr-datasheet.pdf)