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LY323DC08UL

Liown · ESD And Surge Protection (TVS/ESD) · SOD-323

LY323DC08UL 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 Bi-directional TVS terminal of the LY323DC08UL (8.0V max reverse working voltage, 8.5V min breakdown at 1mA, 19.5A peak pulse current at 8/20µs), connected to the protected line or to ground since the device is bi-directional.
2 2 passive Bi-directional TVS terminal of the LY323DC08UL (8.0V max reverse working voltage, 8.5V min breakdown at 1mA, 19.5A peak pulse current at 8/20µs), connected to the protected line or to ground since the device is bi-directional.

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 8 V 2
Reverse Breakdown Voltage VBR 8.5 V IT=1mA 2
Reverse Leakage Current IR 0.2 µA @VRWM 2
Clamping Voltage VC 9 V 8/20µs, @1A 2
Clamping Voltage VC 19.5 V 8/20µs, @IPP 2
Peak Pulse Current IPP 18 A 8/20µs 2
Junction Capacitance CJ 1 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: LY323DC08UL
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: ly323dc08ul-etched.step / ly323dc08ul-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ly323dc08ul.step / ly323dc08ul.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 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-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