# ESDULC5V0D9B

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

ESDULC5V0D9B from Yint, 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 | 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 | Yint |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse Breakdown Voltage | VBR | 6.5 |  | 9 | V | IT = 1mA | 1 |
| Reverse Current | IR |  |  | 1 | μA | VRWM =5V | 1 |
| Clamping Voltage | VC |  |  | 25 | V | IPP=1A, tP =8/20μs | 1 |
| Diode Capacitance | CD |  | 0.5 | 0.9 | pF | VR = 0V, f = 1MHz | 1 |
| Maximum Reverse Peak Pulse Current (8/20μS) | IPP |  |  | 1 | A | 8/20μS | 1 |
| ESD per IEC 61000-4-2 (Air) | VESD | -30 |  | 30 | KV | IEC 61000-4-2 (Air) | 1 |
| ESD per IEC 61000-4-2 (Contact) | VESD | -30 |  | 30 | KV | IEC 61000-4-2 (Contact) | 1 |
| Storage Temperature Range | TSTJ | -55 |  | 150 | ℃ |  | 1 |
| Operating Temperature Range | TJ | -40 |  | 125 | ℃ |  | 1 |
| Lead Soldering Temperature | TL |  |  | 260 | ℃ | 10 sec | 1 |

## CAD (KiCad official)

- Symbol: `ESDULC5V0D9B`
- Footprint: `Diode_SMD:D_SOD-923`
- 3D model: SOD-923 (KiCad packages3D, STEP)
- 3D model files: `esdulc5v0d9b-etched.step` / `esdulc5v0d9b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esdulc5v0d9b.step` / `esdulc5v0d9b.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Yint datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756855221492559872) (3 pp, sha256 `0cda6223b8cfe2b6`, retrieved 2026-10-17, 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/esdulc5v0d9b-datasheet.pdf)