# H7VHD3UA

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

H7VHD3UA from hongjiacheng, 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 | 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 | hongjiacheng |
| 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 |
|---|---|---|---|---|---|---|---|
| ESD Electrostatic Discharge Voltage (IEC 61000-4-2 Air) | VESD | -30 |  | 30 | KV | ESD per IEC 61000-4-2 (Air) | 1 |
| ESD Electrostatic Discharge Voltage (IEC 61000-4-2 Contact) | VESD | -30 |  | 30 | KV | ESD per IEC 61000-4-2 (Contact) | 1 |
| Peak Pulse Power | PPP |  |  | 2205 | W | tp = 8/20 µs | 1 |
| Rated Peak Pulse Current | IPP |  |  | 105 | A | tp = 8/20 µs | 1 |
| Operating Junction Temperature Range | TJ | -55 |  | 125 | ℃ |  | 1 |
| Operating Junction Temperature Range (storage, as printed) | TSTG | -55 |  | 150 | ℃ |  | 1 |
| Peak Reverse Working Voltage | VRWM |  |  | 7 | V | Ta=25℃ | 2 |
| Breakdown Voltage | VBR | 7.5 |  | 9 | V | IR=1mA, Ta=25℃ | 2 |
| Reverse Leakage Current | IR |  |  | 1 | μA | VR=7V, Ta=25℃ | 2 |
| Clamping Voltage | VC |  |  | 9.5 | V | IPP=10A, tp=8/20μs | 2 |
| Clamping Voltage | VC |  |  | 21 | V | IPP=105A, tp=8/20μs | 2 |

## CAD (KiCad official)

- Symbol: `H7VHD3UA`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `h7vhd3ua-etched.step` / `h7vhd3ua-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `h7vhd3ua.step` / `h7vhd3ua.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [hongjiacheng datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756315108723036160) (3 pp, sha256 `0e78728ffe9a851d`, retrieved 2026-10-22, 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/h7vhd3ua-datasheet.pdf)