# H5VUD5BB

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

H5VUD5BB from hongjiacheng, 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 | A1 | passive | Bidirectional ESD protection terminal on the cathode-band side, 5V max reverse working voltage (VRWM), ±15kV IEC 61000-4-2 air and contact. |
| 2 | A2 | passive | Bidirectional ESD protection terminal opposite the cathode band, 5V max reverse working voltage (VRWM), 5A peak pulse current (8/20µs). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | hongjiacheng |
| Package | SOD-523 |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `H5VUD5BB`
- Footprint: `Diode_SMD:D_SOD-523`
- 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files: `h5vud5bb-etched.step` / `h5vud5bb-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `h5vud5bb.step` / `h5vud5bb.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/8756315226440507392) (3 pp, sha256 `bce8e438bf2efbd2`, retrieved 2026-10-12, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/h5vud5bb-datasheet.pdf)