# PESD2CANFD24V-UX

**Nexperia** · ESD And Surge Protection (TVS/ESD) · SOT-323

PESD2CANFD24V-UX from Nexperia, in a SOT-323. 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 ESD protection diode 1, measured from pin 1 to pin 3 with a reverse standoff voltage VRWM of 24 V and a diode capacitance Cd of 6 pF maximum. |
| 2 | K2 | passive | Cathode of ESD protection diode 2, measured from pin 2 to pin 3 with a reverse standoff voltage VRWM of 24 V and a diode capacitance Cd of 6 pF maximum. |
| 3 | CC | passive | Common cathode shared by both ESD protection diodes, the reference terminal for all pin 1 and pin 2 measurements, with a peak pulse current IPPM limit of 2.6 A (8/20 µs). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| Package | SOT-323 |
| Category | Circuit Protection |
| Pins | 3 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| rated peak pulse current | IPPM |  |  | 2.6 | A | tp = 8/20 µs | 3 |
| junction temperature | Tj |  |  | 175 | °C |  | 3 |
| ambient temperature | Tamb | -55 |  | 175 | °C |  | 3 |
| storage temperature | Tstg | -65 |  | 175 | °C |  | 3 |
| electrostatic discharge voltage (IEC 61000-4-2 contact discharge) | VESD |  |  | 23 | kV | IEC 61000-4-2; contact discharge | 3 |
| electrostatic discharge voltage (ISO 10605 contact discharge) | VESD |  |  | 20 | kV | ISO 10605; contact discharge; C = 330 pF, R = 330 Ω | 3 |
| electrostatic discharge voltage (ISO 10605 contact discharge) | VESD |  |  | 23 | kV | ISO 10605; contact discharge; C = 150 pF, R = 330 Ω | 3 |
| reverse standoff voltage | VRWM |  |  | 24 | V | Tamb = 25 °C | 4 |
| breakdown voltage | VBR | 25.5 | 30 | 35.5 | V | IR = 10 mA; Tamb = 25 °C | 4 |
| reverse leakage current | IRM |  | 1 | 50 | nA | VRWM = 24 V; Tamb = 25 °C | 4 |
| diode capacitance | Cd |  | 5.2 | 6 | pF | f = 1 MHz; VR = 2.5 V; Tamb = 25 °C | 4 |
| clamping voltage | VCL |  | 33 | 42 | V | IPPM = 1 A; tp = 8/20 µs; Tamb = 25 °C | 4 |
| diode capacitance matching | ΔCd/Cd |  | 0.5 |  | % | f = 1 MHz; VR = 2.5 V; Tamb = 25 °C | 4 |
| dynamic resistance | Rdyn |  | 0.7 |  | Ω | IR = 10 A; Tamb = 25 °C | 4 |

## CAD (KiCad official)

- Symbol: `PESD2CANFD24V-UX`
- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`
- 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files: `pesd2canfd24v-ux-etched.step` / `pesd2canfd24v-ux-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pesd2canfd24v-ux.step` / `pesd2canfd24v-ux.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/8588912904695656448) (13 pp, sha256 `07bdfff10b32a9f8`, retrieved 2026-10-18, 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/pesd2canfd24v-ux-datasheet.pdf)