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Contents

README

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TPESD5491S

TECH PUBLIC · ESD Protection Devices · SOD-523

TPESD5491S from TECH PUBLIC, 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 A1 passive Bi-directional TVS terminal with ±3.3V max reverse working voltage and ±30kV IEC 61000-4-2 ESD protection; interchangeable with the other terminal.
2 A2 passive Bi-directional TVS terminal with ±3.3V max reverse working voltage and ±30kV IEC 61000-4-2 ESD protection; interchangeable with the other terminal.

Key specifications

Parameter Value
Manufacturer TECH PUBLIC
Package SOD-523
Category Circuit Protection
Pins 2

CAD (KiCad official)

  • Symbol: TPESD5491S
  • Footprint: Diode_SMD:D_SOD-523
  • 3D model: SOD-523 (KiCad packages3D, STEP)
  • 3D model files: tpesd5491s-etched.step / tpesd5491s-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tpesd5491s.step / tpesd5491s.glb are the bare package body.

Provenance

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

  • Datasheet: TECH PUBLIC datasheet (4 pp, sha256 0b9327e3e6475014, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (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