component

TPESD0502S4

Public Made by Adom

by adom

TECH PUBLIC ESD And Surge Protection (TVS/ESD), SOT-143. 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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README.md Publish 0.1.0 · Ray 9h ago
tpesd0502s4-etched.glb tpesd0502s4: factory component page (tier=lcsc) · Ray 9h ago
tpesd0502s4-etched.step tpesd0502s4: factory component page (tier=lcsc) · Ray 9h ago
tpesd0502s4-hero.glb tpesd0502s4: hero GLB from the etched model (keeps the MPN mark) · Ray 9h ago
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TPESD0502S4

TECH PUBLIC · ESD And Surge Protection (TVS/ESD) · SOT-143

TPESD0502S4 from TECH PUBLIC, in a SOT-143. 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 GND power_in Ground reference of the TVS array, common to the steering-diode anodes and the TVS diode anode; I/O ratings (5V VRWM max) are specified to this pin.
2 I/O1 passive Protected data line I/O (Note 1: I/O pins are pin 2 and 3), rated 5V max reverse working voltage to ground with 0.8pF max capacitance to ground.
3 I/O2 passive Protected data line I/O (Note 1: I/O pins are pin 2 and 3), rated 5V max reverse working voltage to ground with 0.4pF max capacitance between I/O pins.
4 VCC power_in Protected power line connection at the top of the steering-diode rails with the TVS diode to pin 1; the datasheet states it protects two data lines and one power line.

Key specifications

Parameter Value
Manufacturer TECH PUBLIC
Package SOT-143
Category Circuit Protection
Pins 4

CAD (KiCad official)

  • Symbol: TPESD0502S4
  • Footprint: Package_TO_SOT_SMD:SOT-143
  • 3D model: SOT-143 (KiCad packages3D, STEP)
  • 3D model files: tpesd0502s4-etched.step / tpesd0502s4-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tpesd0502s4.step / tpesd0502s4.glb are the bare package body.

Provenance

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

  • Datasheet: TECH PUBLIC datasheet (4 pp, sha256 c3516958b36beb50, retrieved 2026-10-09, 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