component
WPE3V3D3ULA
Public Made by Adomby adom
WPMtek Wei Pan Microelectronics ESD And Surge Protection (TVS/ESD), SOD-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 9d ago |
| viewers | 9d ago |
| package.json | 9d ago |
| page.json | 9d ago |
| README.md | 9d ago |
| wpe3v3d3ula-etched.glb | 9d ago |
| wpe3v3d3ula-etched.step | 9d ago |
| wpe3v3d3ula-hero.glb | 9d ago |
| wpe3v3d3ula-hero.overlay.json | 9d ago |
| wpe3v3d3ula.glb | 9d ago |
| wpe3v3d3ula.kicad_mod | 9d ago |
| wpe3v3d3ula.kicad_sym | 9d ago |
| wpe3v3d3ula.lbr | 9d ago |
| wpe3v3d3ula.step | 9d ago |
WPE3V3D3ULA
WPMtek Wei Pan Microelectronics · ESD And Surge Protection (TVS/ESD) · SOD-323
WPE3V3D3ULA 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 | 1 | passive | Terminal 1 of the 1-line bi-directional TVS diode, which protects one power or data line with a reverse working voltage of 3.3V and can be connected to either the protected line or ground. |
| 2 | 2 | passive | Terminal 2 of the 1-line bi-directional TVS diode, which protects one power or data line with a reverse working voltage of 3.3V and can be connected to either the protected line or ground. |
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 | 3.3 | V | 2 | |||
| Punch-Through Voltage | VPT | 3.5 | V | IT = 2µA | 2 | ||
| Snap-Back Voltage | VBR | 2.8 | V | IT = 50mA | 2 | ||
| Reverse Leakage Current | IR | 0.2 | µA | VRWM = 3.3V | 2 | ||
| Clamping Voltage | VC | 5 | V | IPP = 1A (8 x 20µs pulse) | 2 | ||
| Clamping Voltage | VC | 16 | V | IPP = 21A (8 x 20µs pulse) | 2 | ||
| Junction Capacitance | CJ | 0.8 | 1.5 | pF | VR = 0V, f = 1MHz | 2 | |
| Peak Pulse Power (8/20µs) | Ppk | 350 | W | TA=25°C | 2 | ||
| Peak Pulse Current (8/20µs) | IPP | 21 | 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 |
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:
WPE3V3D3ULA - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
wpe3v3d3ula-etched.step/wpe3v3d3ula-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);wpe3v3d3ula.step/wpe3v3d3ula.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: WPMtek Wei Pan Microelectronics datasheet (4 pp, sha256
37ff3e89bc982482, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-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).