component

PESD3V3S1BA

Public Made by Adom

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TDSEMIC ESD And Surge Protection (TVS/ESD), SOT-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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package.json pesd3v3s1ba: etched from the flattened plain STEP (service-occt 1.6.0, from the plain STEP) · Ray 17d ago
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PESD3V3S1BA

TDSEMIC · ESD And Surge Protection (TVS/ESD) · SOT-523

PESD3V3S1BA from TDSEMIC, in a SOT-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 1 passive Bidirectional ESD protection diode terminal 1 (leaded, protects one signal line); reverse working voltage 3.3V max, breakdown 5.6V to 7.8V at IT=1mA.
2 2 passive Bidirectional ESD protection diode terminal 2 (leaded, protects one signal line); reverse working voltage 3.3V max, clamping voltage 11.0V max at IPP=4A, 8/20µs.
3 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer TDSEMIC
Package SOT-523
Category Circuit Protection
Pins 3

CAD (KiCad official)

  • Symbol: PESD3V3S1BA
  • Footprint: Package_TO_SOT_SMD:SOT-523
  • 3D model: SOT-523, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.8 mm nominal SOT-523 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
  • 3D model files: pesd3v3s1ba-etched.step / pesd3v3s1ba-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pesd3v3s1ba.step / pesd3v3s1ba.glb are the bare package body.

Provenance

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

  • Datasheet: TDSEMIC datasheet (4 pp, sha256 621657ec8863f569, retrieved 2026-10-09, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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