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Contents

README

markdown

SMS3.3.TCT

TECH PUBLIC · ESD And Surge Protection (TVS/ESD) · SOT-23-6

SMS3.3.TCT from TECH PUBLIC, in a SOT-23-6. 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 IO1 passive Protected line I/O (uni-directional ESD diode to the common GND node); 3.3V max reverse working voltage, ±30kV air/contact ESD per IEC 61000-4-2.
2 GND power_in Ground, common node of the TVS diode array shown tied to pin 5 in the pin configuration drawing.
3 IO2 passive Protected line I/O (uni-directional ESD diode to the common GND node); 3.3V max reverse working voltage, ±30kV air/contact ESD per IEC 61000-4-2.
4 IO3 passive Protected line I/O (uni-directional ESD diode to the common GND node); 3.3V max reverse working voltage, ±30kV air/contact ESD per IEC 61000-4-2.
5 GND power_in Ground, common node of the TVS diode array shown tied to pin 2 in the pin configuration drawing.
6 IO4 passive Protected line I/O (uni-directional ESD diode to the common GND node); 3.3V max reverse working voltage, ±30kV air/contact ESD per IEC 61000-4-2.

Key specifications

Parameter Value
Manufacturer TECH PUBLIC
Package SOT-23-6
Category Circuit Protection
Pins 6

CAD (KiCad official)

  • Symbol: SMS3.3.TCT
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: sms3-3-tct-etched.step / sms3-3-tct-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sms3-3-tct.step / sms3-3-tct.glb are the bare package body.

Provenance

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

  • Datasheet: TECH PUBLIC datasheet (4 pp, sha256 009d013c3788a31f, retrieved 2026-10-18, 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