# H5VUD5U

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

H5VUD5U 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 | 1 | passive | Diode terminal 1 of the uni-directional ESD protection device (5V max reverse working voltage, 0.8pF max junction capacitance, ±25kV air / ±20kV contact IEC 61000-4-2). |
| 2 | 2 | passive | Diode terminal 2 of the uni-directional ESD protection device, shown opposite pin 1 in the function diagram (VRWM 5.0V max, VBR 6.0 to 9.0V at 1mA). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | hongjiacheng |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage | VBR | 6 |  | 9 | V | IR=1mA,Ta=25℃ | 2 |
| Peak Reverse Working Voltage | VRWM |  |  | 5 | V | Ta=25℃ | 2 |
| Reverse Leakage Current | IR |  |  | 0.2 | μA | VR=5V,Ta=25℃ | 2 |
| Clamping Voltage | VC |  |  | 10 | V | IPP=1A, tp=8/20μs | 2 |
| Clamping Voltage | VC |  |  | 15 | V | IPP=5A,tp=8/20μs | 2 |
| Junction Capacitance | CJ |  | 0.6 | 0.8 | pF | VR=0V,f=1MHz | 2 |
| Electrostatic Discharge Voltage (Air) | VESD | -25 |  | 25 | KV | ESD per IEC 61000-4-2 (Air) | 1 |
| Electrostatic Discharge Voltage (Contact) | VESD | -20 |  | 20 | KV | ESD per IEC 61000-4-2 (Contact) | 1 |
| Peak Pulse Power | PPP |  |  | 75 | W | tp = 8/20 µs | 1 |
| Rated Peak Pulse Current | IPP |  |  | 5 | A | tp = 8/20 µs | 1 |
| Operating Junction Temperature Range | TJ | -55 |  | 125 | ℃ |  | 1 |
| Operating JunctionTemperature Range (as printed for TSTG) | TSTG | -55 |  | 150 | ℃ |  | 1 |

## CAD (KiCad official)

- Symbol: `H5VUD5U`
- Footprint: `Diode_SMD:D_SOD-523`
- 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files: `h5vud5u-etched.step` / `h5vud5u-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `h5vud5u.step` / `h5vud5u.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/8756315404300103680) (3 pp, sha256 `331675e92be1be68`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/h5vud5u-datasheet.pdf)