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ESD5Z3V3-2

Public Made by Adom

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WILLSEMI Will Semicon ESD And Surge Protection (TVS/ESD), SOD-523. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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docs Publish 0.1.0 · Ray 28d ago
viewers esd5z3v3-2: symbol repaired (D_Zener, cathode pad 1) · Ray 5d ago
esd5z3v3-2-etched.glb Publish 0.1.0 · Ray 28d ago
esd5z3v3-2-etched.step esd5z3v3-2: factory component page (tier=lcsc) · Ray 28d ago
esd5z3v3-2-hero.glb esd5z3v3-2: hero GLB from the etched model (keeps the MPN mark) · Ray 28d ago
esd5z3v3-2-hero.overlay.json Publish 0.1.0 · Ray 28d ago
esd5z3v3-2.glb Publish 0.1.0 · Ray 28d ago
esd5z3v3-2.kicad_mod Publish 0.1.0 · Ray 28d ago
esd5z3v3-2.kicad_sym esd5z3v3-2: symbol repaired (D_Zener, cathode pad 1) · Ray 5d ago
esd5z3v3-2.lbr esd5z3v3-2: symbol repaired (D_Zener, cathode pad 1) · Ray 5d ago
esd5z3v3-2.step Publish 0.1.0 · Ray 28d ago
package.json Publish 0.1.0 · Ray 28d ago
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README.md Publish 0.1.0 · Ray 28d ago

ESD5Z3V3-2

WILLSEMI Will Semicon · ESD And Surge Protection (TVS/ESD) · SOD-523

ESD5Z3V3-2 from WILLSEMI Will Semicon, 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 K passive Cathode of the uni-directional TVS, marked by the band on the package, connected to the protected line; working voltage 3.3V (VRWM).
2 A passive Anode of the uni-directional TVS, normally connected to ground; ESD protection up to ±30kV (IEC61000-4-2) and peak pulse current 9A (8/20us).

Key specifications

Parameter Value
Manufacturer WILLSEMI Will Semicon
Package SOD-523
Category Circuit Protection
Pins 2

CAD (KiCad official)

  • Symbol: ESD5Z3V3-2
  • Footprint: Diode_SMD:D_SOD-523
  • 3D model: SOD-523 (KiCad packages3D, STEP)
  • 3D model files: esd5z3v3-2-etched.step / esd5z3v3-2-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); esd5z3v3-2.step / esd5z3v3-2.glb are the bare package body.

Provenance

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

  • Datasheet: WILLSEMI Will Semicon datasheet (4 pp, sha256 ca21a17ce24b04d4, retrieved 2026-10-13, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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