# ESD9L5.0ST5G-ES

**ElecSuper** · ESD And Surge Protection (TVS/ESD) · SOD-923

ESD9L5.0ST5G-ES from ElecSuper, in a SOD-923. 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 | IO1 | bidirectional | Connect to the I/O line to be protected; the datasheet gives a 5.0 V peak reverse working voltage (VRWM) and an IEC 61000-4-2 Level 4 rating of ±20 kV contact and ±20 kV air discharge. |
| 2 | GND | power_in | Connect to ground, the clamping reference for the ESD protection. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ElecSuper |
| Package | SOD-923 |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `ESD9L5.0ST5G-ES`
- Footprint: `Diode_SMD:D_SOD-923`
- 3D model: SOD-923 (KiCad packages3D, STEP)
- 3D model files: `esd9l5-0st5g-es-etched.step` / `esd9l5-0st5g-es-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esd9l5-0st5g-es.step` / `esd9l5-0st5g-es.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ElecSuper datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590458513622671360) (6 pp, sha256 `6c51e438f222d48c`, retrieved 2026-10-12, 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/esd9l5-0st5g-es-datasheet.pdf)