component

LY523BA05

Public Made by Adom

by adom

Liown ESD And Surge Protection (TVS/ESD), SOD-523. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

componentcircuit protectionly523ba05factory-2.0.0extractor-text

Changed since verified LY523BA05

by Ray · last 2 Nov 2026 · 1 record · files changed since
SymbolFootprint3D modelPins

Verification log 1 record

2 Nov 2026RayPublished by the parts factory: tier lcsc, 2 pinschanged since
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: LY523BA05 · SOD-523 · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: all 2 pin names found in the 5-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: D_SOD-523
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-5nwkfu04/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 2 pins = 2 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 2 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files! ly523ba05.kicad_sym✓ ly523ba05.kicad_mod✓ ly523ba05.step
Spot something wrong? Report it as an issue Propose a fix Records are signed by members of adom.
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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 6d ago
viewers ly523ba05: symbol repaired (D_Zener, cathode pad 1) · Ray 4d ago
ly523ba05-etched.glb Publish 0.1.0 · Ray 6d ago
ly523ba05-etched.step ly523ba05: factory component page (tier=lcsc) · Ray 6d ago
ly523ba05-hero.glb ly523ba05: hero GLB from the etched model (keeps the MPN mark) · Ray 6d ago
ly523ba05-hero.overlay.json Publish 0.1.0 · Ray 6d ago
ly523ba05.glb Publish 0.1.0 · Ray 6d ago
ly523ba05.kicad_mod Publish 0.1.0 · Ray 6d ago
ly523ba05.kicad_sym ly523ba05: symbol repaired (D_Zener, cathode pad 1) · Ray 4d ago
ly523ba05.lbr ly523ba05: symbol repaired (D_Zener, cathode pad 1) · Ray 4d ago
ly523ba05.step Publish 0.1.0 · Ray 6d ago
package.json Publish 0.1.0 · Ray 6d ago
page.json Set visibility: public · Ray 6d ago
README.md Publish 0.1.0 · Ray 6d ago
verification.json Verified: Published by the parts factory: tier lcsc, 2 pins · Ray 6d ago

LY523BA05

Liown · ESD And Surge Protection (TVS/ESD) · SOD-523

LY523BA05 from Liown, in a SOD-523. 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 K passive Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

Key specifications

Parameter Value
Manufacturer Liown
Package SOD-523
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 5 V 2
Breakdown Voltage VBR 6 8.5 V IT = 1mA 2
Reverse Leakage Current IR 0.2 µA VRWM = 5V 2
Clamping Voltage VC 12 V IPP = 8A (8/20µs) 2
Peak Pulse Power (8/20µs) PPP 100 W 8/20µs 2
Peak Pulse Current (8/20µs) IPP 8 A 8/20µs 2
ESD per IEC 61000-4-2 (Air) VESD -30 30 kV ESD per IEC 61000-4-2 (Air) 2
ESD per IEC 61000-4-2 (Contact) VESD -30 30 kV ESD per IEC 61000-4-2 (Contact) 2
Ambient Temperature Range TA -55 125 ℃ 2
Storage Temperature Range TSTG -55 150 ℃ 2
Junction Capacitance CJ 60 pF VR = 0V, f = 1MHz 2

CAD (KiCad official)

  • Symbol: LY523BA05
  • Footprint: Diode_SMD:D_SOD-523
  • 3D model: SOD-523 (KiCad packages3D, STEP)
  • 3D model files: ly523ba05-etched.step / ly523ba05-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ly523ba05.step / ly523ba05.glb are the bare package body.

Provenance

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

  • Datasheet: Liown datasheet (5 pp, sha256 23917d561eb84255, retrieved 2026-11-02, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band 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