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LC03-3.3

Public Made by Adom

by adom

TECH PUBLIC ESD And Surge Protection (TVS/ESD), SO-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LC03-3.3

TECH PUBLIC · ESD And Surge Protection (TVS/ESD) · SO-8

LC03-3.3 from TECH PUBLIC, in a SO-8. 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 LINE1_IN passive Line 1 data line input, connected internally with pin 8 (Line 1 out) to the steering-diode bridge for differential and common-mode protection.
2 GND power_in Ground, connected directly to a ground plane for common-mode protection (left not connected for differential-only protection in high common-voltage applications).
3 GND power_in Ground, connected directly to a ground plane for common-mode protection (left not connected for differential-only protection in high common-voltage applications).
4 LINE2_IN passive Line 2 data line input, connected internally with pin 5 (Line 2 out) to the steering-diode bridge for differential and common-mode protection.
5 LINE2_OUT passive Line 2 data line output, connected internally with pin 4 (Line 2 in) to the protection bridge.
6 GND power_in Ground, connected directly to a ground plane for common-mode protection (left not connected for differential-only protection in high common-voltage applications).
7 GND power_in Ground, connected directly to a ground plane for common-mode protection (left not connected for differential-only protection in high common-voltage applications).
8 LINE1_OUT passive Line 1 data line output, connected internally with pin 1 (Line 1 in) to the protection bridge.

Key specifications

Parameter Value
Manufacturer TECH PUBLIC
Package SO-8
Category Circuit Protection
Pins 8

CAD (KiCad official)

  • Symbol: LC03-3.3
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SO-8 (KiCad packages3D, STEP)
  • 3D model files: lc03-3-3-etched.step / lc03-3-3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lc03-3-3.step / lc03-3-3.glb are the bare package body.

Provenance

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

  • Datasheet: TECH PUBLIC datasheet (5 pp, sha256 145dbff55a27bb50, 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