component

LY323DC03UL

Public Made by Adom

by adom

Liown ESD Protection Devices, 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.

componenttvs-fuse-board level protectionly323dc03ulfactory-2.0.0extractor-text

Verified LY323DC03UL

by Ray · last 5 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

5 Nov 2026RayPublished by the parts factory: tier lcsc, 2 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: LY323DC03UL · SOD-323 · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: unpolarised two-terminal part: pins 1 and 2 by library convention, no names to check
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: D_SOD-323
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-cyk0ovn6/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height and body within the datasheet's package drawing (datasheet p.5)
  • ✓pads: 2 pins = 2 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 2 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ ly323dc03ul.kicad_sym✓ ly323dc03ul.kicad_mod✓ ly323dc03ul.step
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ly323dc03ul / README.md
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Ray Publish 0.1.0 e744378 4d ago

LY323DC03UL

Liown · ESD Protection Devices · SOD-323

LY323DC03UL 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 fuse; either orientation.
2 2 passive Terminal 2 of an unpolarised fuse; either orientation.

Key specifications

Parameter Value
Manufacturer Liown
Package SOD-323
Category TVS/Fuse/Board Level 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 3.3 V 2
Reverse Breakdown Voltage VBR 4.4 V @IT=1mA 2
Reverse Leakage Current IR 0.2 µA @VRWM 2
Clamping Voltage VC 7 V @8/20µs, @1A 2
Clamping Voltage VC 16 V @8/20µs, @IPP 2
Peak Pulse Current IPP 21 A 2
Peak Pulse Power PPP 300 W 8/20µs 2
ESD per IEC 61000-4-2 (Air) VESD -30 30 kV IEC 61000-4-2 (Air) 2
ESD per IEC 61000-4-2 (Contact) VESD -30 30 kV IEC 61000-4-2 (Contact) 2
Ambient Temperature Range TA -55 125 ℃ 2
Storage Temperature Range TSTG -55 150 ℃ 2

CAD (KiCad official)

  • Symbol: LY323DC03UL
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: ly323dc03ul-etched.step / ly323dc03ul-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ly323dc03ul.step / ly323dc03ul.glb are the bare package body.

Provenance

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

  • Datasheet: Liown datasheet (5 pp, sha256 3f2d02a1f20f6ce6, retrieved 2026-11-05, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary two-terminal convention (convention), consensus off (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