# ESD5Z5CL

**Leiditech** · ESD Protection Devices · SOD-523

ESD5Z5CL from Leiditech, in a SOD-523. 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 | Terminal 1 of an unpolarised bidirectional ESD/TVS diode; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised bidirectional ESD/TVS diode; either orientation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Leiditech |
| Package | SOD-523 |
| 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 |
|---|---|---|---|---|---|---|---|
| Peak Pulse Power (8/20µs) | Ppp |  |  | 200 | W | 8/20µs; Tamb=25°C unless otherwise specified | 1 |
| ESD per IEC 61000-4-2 (Air) | VESD | -15 |  | 15 | Kv | IEC 61000-4-2 (Air); Tamb=25°C unless otherwise specified | 1 |
| ESD per IEC 61000-4-2 (Contact) | VESD | -8 |  | 8 | Kv | IEC 61000-4-2 (Contact); Tamb=25°C unless otherwise specified | 1 |
| Operating Temperature Range | TJ | -55 |  | 125 | ℃ | Tamb=25°C unless otherwise specified | 1 |
| Storage Temperature Range | TSTJ | -55 |  | 150 | ℃ | Tamb=25°C unless otherwise specified | 1 |
| Reverse Working Voltage | VRWM |  |  | 5 | V |  | 2 |
| Breakdown Voltage | VBR | 6 |  |  | V | IT = 1 mA (test current per IT column) | 2 |

## CAD (KiCad official)

- Symbol: `ESD5Z5CL`
- Footprint: `Diode_SMD:D_SOD-523`
- 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files: `esd5z5cl-etched.step` / `esd5z5cl-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esd5z5cl.step` / `esd5z5cl.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Leiditech datasheet](docs/esd5z5cl-datasheet.pdf) (3 pp, sha256 `f5f22bae81e913fa`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `two-terminal 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/esd5z5cl-datasheet.pdf)