# WPE8V0D3ULA

**WPMtek Wei Pan Microelectronics** · ESD And Surge Protection (TVS/ESD) · SOD-323

WPE8V0D3ULA from WPMtek Wei Pan Microelectronics, 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 | A1 | passive | Bi-directional TVS terminal 1 protecting one power or data line, 8V reverse working voltage (VRWM), 350W peak pulse power (8/20µs), ±30kV IEC 61000-4-2 ESD. |
| 2 | A2 | passive | Bi-directional TVS terminal 2 (interchangeable with pin 1, no polarity), 8V reverse working voltage (VRWM), 18A peak pulse current (8/20µs). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | WPMtek Wei Pan Microelectronics |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse Working Voltage | VRWM |  |  | 8 | V |  | 2 |
| Breakdown Voltage | VBR | 8.5 |  |  | V | IT = 1mA | 2 |
| Reverse Leakage Current | IR |  |  | 0.2 | μA | VRWM = 8V | 2 |
| Clamping Voltage | VC |  |  | 11 | V | IPP = 1A (8 x 20µs pulse) | 2 |
| Clamping Voltage | VC |  |  | 19.5 | V | IPP = 18A (8 x 20µs pulse) | 2 |
| Peak Pulse Power (8/20µs) | Ppk |  |  | 350 | W | TA=25°C | 2 |
| Peak Pulse Current (8/20µs) | IPP |  |  | 18 | A | TA=25°C | 2 |
| ESD per IEC 61000-4-2 (Air) | VESD | -30 |  | 30 | kV | TA=25°C | 2 |
| ESD per IEC 61000-4-2 (Contact) | VESD | -30 |  | 30 | kV | TA=25°C | 2 |
| Operating Temperature Range | TJ | -55 |  | 125 | °C |  | 2 |
| Storage Temperature Range | Tstg | -55 |  | 150 | °C |  | 2 |
| Junction Capacitance | CJ |  | 1 |  | 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 |  Lead Finish: Matte Tin  Case Material: “Green” Molding Compound. | 1 |

## CAD (KiCad official)

- Symbol: `WPE8V0D3ULA`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `wpe8v0d3ula-etched.step` / `wpe8v0d3ula-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `wpe8v0d3ula.step` / `wpe8v0d3ula.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [WPMtek Wei Pan Microelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757102903322923008) (5 pp, sha256 `c4d17af2dfdfbcf9`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/wpe8v0d3ula-datasheet.pdf)