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CESDLC3V0L4
Public Made by Adomby adom
Changjing ESD And Surge Protection (TVS/ESD), SOT-553. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownCESDLC3V0L4
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cesdlc3v0l4.step/cesdlc3v0l4.glbare 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, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).