# PGB1010402KR

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

PGB1010402KR 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 | A | passive | First terminal of the bidirectional polymeric ESD suppressor; connected to the signal/data line; rated 12 VDC maximum, clamps to 250 V typical under IEC 61000-4-2 8 kV contact discharge. |
| 2 | A | passive | Second terminal of the bidirectional polymeric ESD suppressor; connected to ground; device is symmetric and bidirectional per equivalent circuit. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Littelfuse |
| Package | 0402 |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `PGB1010402KR`
- Footprint: `Resistor_SMD:R_0402_1005Metric`
- 3D model: 0402 (KiCad packages3D, STEP)
- 3D model files: `pgb1010402kr-etched.step` / `pgb1010402kr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pgb1010402kr.step` / `pgb1010402kr.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/8586172669838700544) (4 pp, sha256 `1d696fba5d3b8230`, retrieved 2026-10-08, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/pgb1010402kr-datasheet.pdf)