component
LY323DC18
Public Made by Adomby adom
Liown ESD And Surge Protection (TVS/ESD), SOD-323. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, 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
markdownLY323DC18
Liown · ESD And Surge Protection (TVS/ESD) · SOD-323
LY323DC18 from Liown, in a SOD-323. 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 | 1 | passive | Terminal 1 of an unpolarised bidirectional ESD/TVS diode; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised bidirectional ESD/TVS diode; either orientation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Liown |
| Package | SOD-323 |
| Category | Circuit Protection |
| Pins | 2 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Reverse Working Voltage | VRWM | 18 | V | 2 | |||
| Reverse Breakdown Voltage | VBR | 19.8 | V | @IT=1mA | 2 | ||
| Reverse Leakage Current | IR | 0.2 | µA | @VRWM | 2 | ||
| Clamping Voltage | VC | 25 | V | @1A, 8/20µs | 2 | ||
| Clamping Voltage | VC | 38 | V | @IPP, 8/20µs | 2 | ||
| Peak Pulse Current | IPP | 13 | A | 8/20µs | 2 | ||
| Junction Capacitance | CJ | 60 | pF | @VR=0V, f=1MHz | 2 | ||
| Peak Pulse Power | PPP | 300 | W | 8/20µs, TA=25℃ | 2 | ||
| ESD per IEC 61000-4-2 (Air) | VESD | -30 | 30 | kV | TA=25℃ | 2 | |
| ESD per IEC 61000-4-2 (Contact) | VESD | -30 | 30 | kV | TA=25℃ | 2 | |
| Ambient Temperature Range | TA | -55 | 125 | ℃ | 2 | ||
| Storage Temperature Range | TSTG | -55 | 150 | ℃ | 2 |
CAD (KiCad official)
- Symbol:
LY323DC18 - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
ly323dc18-etched.step/ly323dc18-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ly323dc18.step/ly323dc18.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Liown datasheet (5 pp, sha256
9084788ab7776879, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarytwo-terminal convention(convention), consensusoff(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).