# LXES03AAA1-193

**Leiditech** · ESD And Surge Protection (TVS/ESD) · 0201

LXES03AAA1-193 from Leiditech, in a 0201. 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 | bidirectional | One of the two bidirectional terminals of the polymeric ESD suppressor for single-line signal protection, rated for 5 V continuous operating voltage with 0.05 pF typical capacitance I/O to GND; not intended for power lines or power bus use. |
| 2 | 2 | bidirectional | The other bidirectional terminal of the polymeric ESD suppressor for single-line signal protection, rated for 5 V continuous operating voltage with 0.05 pF typical capacitance I/O to GND; not intended for power lines or power bus use. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Leiditech |
| Package | 0201 |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `LXES03AAA1-193`
- Footprint: `Diode_SMD:D_0201_0603Metric`
- 3D model: 0201, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.3 mm nominal _01005_ height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files: `lxes03aaa1-193-etched.step` / `lxes03aaa1-193-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lxes03aaa1-193.step` / `lxes03aaa1-193.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Leiditech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590896915926237184) (8 pp, sha256 `4acfbeb915f58525`, retrieved 2026-10-09, 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/lxes03aaa1-193-datasheet.pdf)