# ESD3Z24

**YFW** · ESD And Surge Protection (TVS/ESD) · SOD-323

ESD3Z24 from YFW, in a SOD-323. 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 | Cathode | passive | Cathode of the unidirectional TVS diode; connects to the protected I/O line, which is protected up to VRWM 24V (ESD3Z24) with VB min 26.7V at 1mA. |
| 2 | Anode | passive | Anode of the unidirectional TVS diode; connects to ground/reference, with ESD protection of ±30kV (air) and ±30kV (contact) per IEC61000-4-2. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | YFW |
| Package | SOD-323 |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse working voltage | VRWM |  |  | 24 | V |  | 2 |
| Breakdown voltage | VB | 26.7 |  |  | V | IT=1mA | 2 |
| Clamping voltage @1A | Vc@1A |  |  | 43 | V | 1A | 2 |
| Clamping voltage | Vc |  |  | 52 | V | @7A | 2 |
| Reverse leakage current | IR |  |  | 1 | uA |  | 2 |
| Capacitance | CT |  |  | 80 | pF |  | 2 |
| ESD per IEC61000-4-2 (Air) | VESD | -30 |  | 30 | kV | Air | 1 |
| ESD per IEC61000-4-2 (Contact) | VESD | -30 |  | 30 | kV | Contact | 1 |
| Peak pulse power | PPP |  |  | 350 | W | 8/20us | 1 |
| Operating temperature | TOPT | -55 |  | 150 | ℃ |  | 1 |
| Storage temperature range | TSTG | -55 |  | 150 | ℃ |  | 1 |
| Lead soldering temperature | TL |  |  | 260 | ℃ | 10 sec. | 1 |

## CAD (KiCad official)

- Symbol: `ESD3Z24`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `esd3z24-etched.step` / `esd3z24-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esd3z24.step` / `esd3z24.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [YFW datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8758062675383193600) (5 pp, sha256 `e52650061564b372`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/esd3z24-datasheet.pdf)