# PTVSHC3D12VU

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

PTVSHC3D12VU 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 | Pin1 | passive | Labeled Pin1 on the datasheet's circuit diagram; the device protects one I/O or power line per line, but the datasheet does not state which terminal is the anode or cathode. |
| 2 | Pin2 | passive | Labeled Pin2 on the datasheet's circuit diagram; the device has a 12 V peak reverse working voltage and a 1300 W peak pulse power rating per line, but the datasheet does not state the polarity of this terminal. |

## 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage | VBR | 13.5 |  | 15 | V | It = 1mA | 2 |
| Clamping Voltage | VC |  | 24 | 30 | V | IPP = 50A, tP = 8/20us | 2 |
| Reverse Leakage Current | IR |  |  | 1 | uA | VRWM = 12V | 2 |
| Junction Capacitance | Cj | 240 | 295 | 350 | pF | VR = 0V, f = 1MHz | 2 |
| Peak Reverse Working Voltage | VRWM |  |  | 12 | V |  | 2 |
| Peak Pulse Power | Ppp |  |  | 1300 | W | tP = 8/20us | 2 |
| Lead Soldering Temperature | TL |  |  | 260 | °C | 10 sec | 2 |
| Operating Temperature | TJ | -55 |  | 125 | °C |  | 2 |
| Storage Temperature | TSTG | -55 |  | 150 | °C |  | 2 |

## CAD (KiCad official)

- Symbol: `PTVSHC3D12VU`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `ptvshc3d12vu-etched.step` / `ptvshc3d12vu-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ptvshc3d12vu.step` / `ptvshc3d12vu.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/8600644176752873472) (5 pp, sha256 `fbcadb495d8ce7e3`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-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/ptvshc3d12vu-datasheet.pdf)