# AXGD10402KR

**Littelfuse** · ESD And Surge Protection (TVS/ESD) · 0402

AXGD10402KR from Littelfuse, in a 0402. 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 | 1 | passive | One of the two terminals of the bi-directional AXGD10402 suppressor (rated voltage 24V max, 30kV IEC 61000-4-2 contact/air, 0.04 pF typical capacitance); the datasheet does not assign a polarity, so either terminal can be the signal line or the ground side. |
| 2 | 2 | passive | The second of the two terminals of the bi-directional AXGD10402 suppressor (rated voltage 24V max, 30kV IEC 61000-4-2 contact/air, 0.04 pF typical capacitance); the datasheet does not assign a polarity, so either terminal can be the signal line or the ground side. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Littelfuse |
| Package | 0402 |
| 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 |
|---|---|---|---|---|---|---|---|
| Rated Voltage (maximum) |  |  |  | 24 | V |  | 1 |
| Response Time |  |  |  | 1 | nS |  | 1 |
| Leakage Current |  |  |  | 1 | nA | @24V | 1 |
| ESD Pulse Withstand |  | 1000 |  |  | pulses |  | 1 |
| Operating and Storage Temperature |  | -65 |  | 125 | °C | Operating and storage temperature (AEC-Q200 environmental specification) | 3 |
| Wave Solder Temperature |  |  |  | 260 | °C | Wave solder, 10 seconds maximum | 3 |
| Reflow Solder Peak Temperature | TP |  |  | 260 | °C | Reflow solder, Pb-free assembly, 30 seconds maximum | 3 |
| Capacitance |  |  | 0.04 |  | pF | Measured at 250MHz | 1 |

## CAD (KiCad official)

- Symbol: `AXGD10402KR`
- Footprint: `Diode_SMD:D_0402_1005Metric`
- 3D model: 0402, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.4 mm tall, family nominal (no datasheet A read)). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions come from the datasheet drawing where it was read and are defaults otherwise (see provenance.model_3d_generated), not the manufacturer's CAD (STEP)
- 3D model files: `axgd10402kr-etched.step` / `axgd10402kr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `axgd10402kr.step` / `axgd10402kr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Littelfuse datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588911529861525504) (4 pp, sha256 `9d914adfbfb91f34`, retrieved 2026-11-11, 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/axgd10402kr-datasheet.pdf)