# ESD12VD5

**Yangzhou Yangjie Elec Tech** · ESD And Surge Protection (TVS/ESD) · SOD-523

ESD12VD5 from Yangzhou Yangjie Elec Tech, 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 | 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 | Yangzhou Yangjie Elec Tech |
| 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 |
|---|---|---|---|---|---|---|---|
| Operating Junction & Storage Temperature | TJ&TSTG | -45 |  | 125 | ℃ |  | 1 |
| IEC61000-4-2 (ESD) Air discharge | VESD | -15 |  | 15 | KV | IEC61000-4-2 air discharge, ten non-repetitive ESD pulses (note 1) | 1 |
| IEC61000-4-2 (ESD) Contact discharge | VESD | -8 |  | 8 | KV | IEC61000-4-2 contact discharge, ten non-repetitive ESD pulses (note 1) | 1 |
| Peak Pulse Current | IPP |  |  | 8 | A | Non-repetitive 8/20μs exponential decay waveform per IEC61000-4-5 (note 2) | 1 |
| Breakdown Voltage | V(BR) | 13.5 |  | 16.5 | V | IT=1mA | 2 |
| Reverse Leakage Current | IR |  |  | 0.5 | uA | VRWM=12V | 2 |
| Reverse Standoff Voltage | VRWM |  |  | 12 | V | (1) Other voltages available upon request | 2 |
| Clamping Voltage | VC |  |  | 30 | V | IPP=8A, 8/20μs waveform per IEC61000-4-5 (note 2) | 2 |
| Forward voltage | VF |  |  | 1.1 | V | IF=10mA | 2 |
| Junction Capacitance | CJ |  |  | 45 | pF | VR=0V,f=1MHz | 2 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts |  | tin | ● Terminals: Tin plated leads, solderable per J-STD-002 and JESD22-B102 | 1 |

## CAD (KiCad official)

- Symbol: `ESD12VD5`
- Footprint: `Diode_SMD:D_SOD-523`
- 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files: `esd12vd5-etched.step` / `esd12vd5-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esd12vd5.step` / `esd12vd5.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Yangzhou Yangjie Elec Tech datasheet](docs/esd12vd5-datasheet.pdf) (4 pp, sha256 `17fd61e5537e57ce`, retrieved 2026-10-21, 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/esd12vd5-datasheet.pdf)