# ESDQ7V0D3

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

ESDQ7V0D3 from UMW, 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 | 1 | passive | Pin 1 of the uni-directional single-line ESD protection diode (7V reverse stand-off); the datasheet does not label its polarity. |
| 2 | 2 | passive | Pin 2 of the uni-directional single-line ESD protection diode (7V reverse stand-off); the datasheet does not label its polarity. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| 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 stand-off voltage | VRWM |  |  | 7 | V |  | 4 |
| Reverse leakage current | IR |  | 0.45 | 1 | µA | VRWM=7V | 4 |
| Breakdown voltage | V(BR) | 7.7 |  | 10 | V | IT=1mA | 4 |
| Clamping voltage | VC |  |  | 16 | V | IPP=65A | 4 |
| Forward voltage | VF |  |  | 1.25 | V | IF=20mA | 4 |
| Junction capacitance | CJ |  |  | 500 | pF | VR=0V, f=1MHz | 4 |
| IEC 61000-4-2 ESD voltage, air | VESD | -25 |  | 25 | kV | Air model, TA=25°C | 2 |
| IEC 61000-4-2 ESD voltage, contact | VESD | -25 |  | 25 | kV | Contact model, TA=25°C | 2 |
| JESD22-A114-B ESD voltage, HBM | VESD | -16 |  | 16 | kV | Per Human Body Model | 2 |
| JESD22-A114-B ESD voltage, MM | VESD | -0.4 |  | 0.4 | kV | Machine Model | 2 |
| Peak pulse power | Ppp |  |  | 1040 | W | 8/20µs, non-repetitive | 2 |
| Peak pulse current | Ipp |  |  | 65 | A | 8/20µs, non-repetitive | 2 |
| Lead solder temperature | TL |  |  | 260 | °C | 10 second duration | 2 |
| Junction and storage temperature range | TJ, TSTG | -55 |  | 150 | °C |  | 2 |

## CAD (KiCad official)

- Symbol: `ESDQ7V0D3`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `esdq7v0d3-etched.step` / `esdq7v0d3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esdq7v0d3.step` / `esdq7v0d3.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [UMW datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8755876587139284992) (8 pp, sha256 `df3d09f474ca74f8`, 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/esdq7v0d3-datasheet.pdf)