# PRTR5V0U2AX

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

PRTR5V0U2AX 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 pin; the input/output-to-ground and supply-to-ground capacitances in the datasheet are measured to this pin. |
| 2 | I/O 1 | bidirectional | Input/output 1 is one of the two high-speed data or signal lines protected by the device, with 1.8 pF typical input/output-to-ground capacitance (f = 1 MHz, V(I/O-GND) = 0 V, Tamb = 25 °C) and ESD protection up to 12 kV per IEC 61000-4-2 level 4. |
| 3 | I/O 2 | bidirectional | Input/output 2 is the second high-speed data or signal line protected by the device, with 1.8 pF typical input/output-to-ground capacitance (f = 1 MHz, V(I/O-GND) = 0 V, Tamb = 25 °C) and ESD protection up to 12 kV per IEC 61000-4-2 level 4. |
| 4 | VCC | power_in | Supply voltage pin tied to the integrated additional ESD diode between ground and VCC, which prevents charging of the supply; supply-to-ground capacitance is 16 pF typical at VCC = 0 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 current | IR |  | 1 | 100 | nA | VR = 3 V; Tamb = 25 °C | 4 |
| Reverse standoff voltage | VRWM |  |  | 5.5 | V |  | 4 |
| Breakdown voltage | VBR | 6 |  | 9 | V | Tamb = 25 °C | 4 |
| Ambient temperature | Tamb | -40 |  | 125 | °C |  | 3 |
| Storage temperature | Tstg | -55 |  | 125 | °C |  | 3 |
| Electrostatic discharge voltage | VESD |  |  | 12 | kV | IEC 61000-4-2; level 4 (ESD) | 3 |

## CAD (KiCad official)

- Symbol: `PRTR5V0U2AX`
- Footprint: `Package_TO_SOT_SMD:SOT-143`
- 3D model: SOT-143 (KiCad packages3D, STEP)
- 3D model files: `prtr5v0u2ax-etched.step` / `prtr5v0u2ax-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `prtr5v0u2ax.step` / `prtr5v0u2ax.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/PRTR5V0U2AX.pdf) (11 pp, sha256 `3d0135a5febe92b4`, 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/prtr5v0u2ax-datasheet.pdf)