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CESDLC3V0L4

Public Made by Adom

by adom

Changjing ESD And Surge Protection (TVS/ESD), SOT-553. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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CESDLC3V0L4

Changjing · ESD And Surge Protection (TVS/ESD) · SOT-553

CESDLC3V0L4 from Changjing, in a SOT-553. 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 I/O1 passive ESD-protected line 1 (pin 1 marked by the solid dot), one of four uni-directional channels, protected to IEC 61000-4-2 ±8 kV contact and ±9 kV air, with 3 V reverse stand-off voltage.
2 GND power_in Common ground reference to which all four I/O channels are clamped (ESD ratings are given I/O to GND).
3 I/O2 passive ESD-protected line 2, one of four uni-directional channels, protected to IEC 61000-4-2 ±8 kV contact and ±9 kV air, with 3 V reverse stand-off voltage.
4 I/O3 passive ESD-protected line 3, one of four uni-directional channels, protected to IEC 61000-4-2 ±8 kV contact and ±9 kV air, with 3 V reverse stand-off voltage.
5 I/O4 passive ESD-protected line 4, one of four uni-directional channels, protected to IEC 61000-4-2 ±8 kV contact and ±9 kV air, with 3 V reverse stand-off voltage.

Key specifications

Parameter Value
Manufacturer Changjing
Package SOT-553
Category Circuit Protection
Pins 5

CAD (KiCad official)

  • Symbol: CESDLC3V0L4
  • Footprint: Package_TO_SOT_SMD:SOT-553
  • 3D model: SOT-553 (KiCad packages3D, STEP)
  • 3D model files: cesdlc3v0l4-etched.step / cesdlc3v0l4-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cesdlc3v0l4.step / cesdlc3v0l4.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (6 pp, sha256 2560c294f09eb8e1, retrieved 2026-10-09, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+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