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Contents

README

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LY323DC15UL

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

LY323DC15UL 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 One terminal of the bi-directional TVS diode for LY323DC15UL, shown as pin 1 in the Pin Configuration figure; the text gives no separate function or limit for this terminal.
2 2 passive The other terminal of the bi-directional TVS diode for LY323DC15UL, shown as pin 2 in the Pin Configuration figure; the text gives no separate function or limit for this terminal.

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 15 V TA=25℃ 2
Reverse breakdown voltage (min) VBR 16.7 V TA=25℃, @IT=1mA 2
Reverse leakage current IR 0.2 µA TA=25℃, @VRWM 2
Clamping voltage VC 21 V TA=25℃, @1A 2
Clamping voltage VC 30 V TA=25℃, @IPP, 8/20µs 2
Peak pulse current IPP 10 A TA=25℃ 2
Junction capacitance CJ 1 pF TA=25℃, VR=0V, f=1MHz 2
Peak pulse power (8/20µs) PPP 300 W TA=25℃, 8/20µs 2
ESD per IEC 61000-4-2 (Air) VESD -30 30 kV IEC 61000-4-2 Air discharge 2
ESD per IEC 61000-4-2 (Contact) VESD -30 30 kV IEC 61000-4-2 Contact discharge 2
Ambient temperature range TA -55 125 ℃ 2
Storage temperature range TSTG -55 150 ℃ 2

CAD (KiCad official)

  • Symbol: LY323DC15UL
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: ly323dc15ul-etched.step / ly323dc15ul-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ly323dc15ul.step / ly323dc15ul.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 2026-10-31, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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