# ESDU5V0D5

**Changjing** · ESD And Surge Protection (TVS/ESD) · SOD-523

ESDU5V0D5 from Changjing, 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 | Changjing |
| 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 |
|---|---|---|---|---|---|---|---|
| ESD Voltage, IEC 61000-4-2 Air Model | VESD(1) | -15 |  | 15 | kV | IEC 61000-4-2 air discharge; printed as ±15 | 2 |
| ESD Voltage, IEC 61000-4-2 Contact Model | VESD(1) | -15 |  | 15 | kV | IEC 61000-4-2 contact discharge; printed as ±15 | 2 |
| ESD Voltage, JESD22-A114-B Human Body Model | VESD(1) | -12 |  | 12 | kV | JESD22-A114-B per human body model; printed as ±12 | 2 |
| ESD Voltage, Machine Model | VESD(1) | -0.4 |  | 0.4 | kV | Machine model; printed as ±0.4; ten non-repetitive ESD pulses | 2 |
| Breakdown voltage | V(BR) | 5.4 |  | 9.4 | V | IT=1mA | 3 |
| Reverse leakage current | IR |  |  | 1 | μA | VRWM=5V | 3 |
| Clamping voltage | VC |  |  | 15 | V | IPP=5A | 3 |
| Forward voltage | VF |  |  | 0.9 | V | IF=10mA | 3 |
| Reverse stand off voltage | VRWM |  | 5 |  | V |  | 3 |
| Junction capacitance | CJ |  | 0.5 |  | pF | VR=0V,f=1MHz | 3 |
| Peak Pulse Power | PPP(2) |  |  | 75 | W | Non-repetitive current pulse 8/20µs exponential decay waveform per IEC61000-4-5 | 2 |
| Peak Pulse Current | IPP(2) |  |  | 5 | A | Non-repetitive current pulse 8/20µs exponential decay waveform per IEC61000-4-5 | 2 |
| Lead Solder Temperature (Maximum) | TL |  |  | 260 | ℃ | 10 second duration | 2 |
| Operation Junction and Storage Temperature Range | TJ,Tstg | -55 |  | 150 | ℃ |  | 2 |

## CAD (KiCad official)

- Symbol: `ESDU5V0D5`
- Footprint: `Diode_SMD:D_SOD-523`
- 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files: `esdu5v0d5-etched.step` / `esdu5v0d5-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esdu5v0d5.step` / `esdu5v0d5.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Changjing datasheet](docs/esdu5v0d5-datasheet.pdf) (6 pp, sha256 `463722f1958ed4be`, 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/esdu5v0d5-datasheet.pdf)