# PESDNC3D12VB

**Shanghai Prisemi Elec** · ESD Protection Devices · SOD-323

PESDNC3D12VB from Shanghai Prisemi Elec, 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 | One terminal of the bidirectional protected line; the device is rated for a 12 V peak reverse working voltage with a 13.5 V minimum breakdown voltage at 1 mA per line. |
| 2 | Pin2 | passive | The other terminal of the bidirectional protected line; the device is rated for a 12 V peak reverse working voltage with a 13.5 V minimum breakdown voltage at 1 mA per line. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Prisemi Elec |
| Package | SOD-323 |
| Category | TVS/Fuse/Board Level 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 |
|---|---|---|---|---|---|---|---|
| Working Voltage | VRWM |  |  | 12 | V |  | 2 |
| Breakdown Voltage | VBR | 13.5 |  |  | V | It =1mA | 2 |
| Reverse Leakage Current | IR |  |  | 1 | μA | VRWM =12V | 2 |
| Clamping Voltage | VC |  | 17 | 19 | V | IPP=1A tP = 8/20μs | 2 |
| Clamping Voltage | VC |  | 24 | 26 | V | IPP=8A tP = 8/20μs | 2 |
| Peak Pulse Power | PPP |  |  | 350 | W | tp=8/20μs | 2 |
| Peak Pulse Current | IPP |  |  | 10 | A | tp=8/20μs | 2 |
| Operating Temperature | TJ | -55 |  | 150 | ℃ |  | 2 |
| Storage Temperature | TSTG | -55 |  | 150 | ℃ |  | 2 |
| Junction Capacitance | CJ |  | 21 |  | pF | VR=0V f = 1MHz | 2 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts |  | tin | ±30KV(contact); IEC 61000-4-4 (EFT) 40A (5/50ns)  Lead finish:100% matte Sn(Tin) | 1 |

## CAD (KiCad official)

- Symbol: `PESDNC3D12VB`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `pesdnc3d12vb-etched.step` / `pesdnc3d12vb-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pesdnc3d12vb.step` / `pesdnc3d12vb.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Shanghai Prisemi Elec datasheet](docs/pesdnc3d12vb-datasheet.pdf) (7 pp, sha256 `5a83494eae459cd7`, retrieved 2026-11-05, 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/pesdnc3d12vb-datasheet.pdf)