# ESD9D5V

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

ESD9D5V from Leiditech, 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 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Leiditech |
| Package | SOD-923 |
| 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 |
|---|---|---|---|---|---|---|---|
| ESD per IEC 61000-4-2 (Air) withstand | VESD | -30 |  | 30 | kV | IEC 61000-4-2 air discharge; printed as ±30 | 1 |
| ESD per IEC 61000-4-2 (Contact) withstand | VESD | -30 |  | 30 | kV | IEC 61000-4-2 contact discharge; printed as ±30 | 1 |
| Peak Pulse Power | Ppp |  |  | 92 | W | 8/20µs | 1 |
| Operating Temperature Range | TJ | -55 |  | 125 | ℃ |  | 1 |
| Storage Temperature Range | TSTJ | -55 |  | 150 | ℃ |  | 1 |
| Reverse Leakage Current | IR |  |  | 1 | μA | Electrical Characteristics table, IR column (Max); test condition not printed in the table | 2 |
| Capacitance | C |  | 40 |  | Pf | Electrical Characteristics table, C column (Typ.); printed unit 'Pf', test condition not printed | 2 |

## CAD (KiCad official)

- Symbol: `ESD9D5V`
- Footprint: `Diode_SMD:D_SOD-923`
- 3D model: SOD-923 (KiCad packages3D, STEP)
- 3D model files: `esd9d5v-etched.step` / `esd9d5v-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esd9d5v.step` / `esd9d5v.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/8588903973927051264) (3 pp, sha256 `97b106ffb5775776`, retrieved 2026-10-16, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (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/esd9d5v-datasheet.pdf)