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SPD9112W-2

Public Made by Adom

by adom

WILLSEMI(Will Semicon) 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.

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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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Contents

README

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SPD9112W-2

WILLSEMI(Will Semicon) · ESD Protection Devices · SOD-323

SPD9112W-2 from WILLSEMI(Will Semicon), 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 WILLSEMI(Will Semicon)
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
Peak pulse power Ppk 300 W tp = 8/20μs 2
Peak pulse current IPP 12 A tp = 8/20μs 2
ESD according to IEC61000-4-2 air discharge VESD -30 30 kV IEC61000-4-2 air discharge 2
ESD according to IEC61000-4-2 contact discharge VESD -30 30 kV IEC61000-4-2 contact discharge 2
Junction temperature TJ 125 oC 2
Operating temperature TOP -40 85 oC 2
Lead temperature TL 260 oC 2
Storage temperature TSTG -55 150 oC 2
Reverse maximum working voltage VRWM 12 V 2
Reverse leakage current IR 100 nA VRWM = 12V 2
Reverse breakdown voltage VBR 13 15 17 V IT = 1mA 2
Clamping voltage VCL 23 V IPP = 16A, tp = 100ns 2
Dynamic resistance RDYN 0.36 Ω 2
Clamping voltage VCL 19 V IPP = 1A, tp = 8/20μs 2
Clamping voltage VCL 24 V IPP = 5A, tp = 8/20μs 2
Clamping voltage VCL 28 V IPP = 12A, tp = 8/20μs 2
Junction capacitance CJ 1.2 1.8 pF VR = 0V, f = 1MHz 2

CAD (KiCad official)

  • Symbol: SPD9112W-2
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: spd9112w-2-etched.step / spd9112w-2-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); spd9112w-2.step / spd9112w-2.glb are the bare package body.

Provenance

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

  • Datasheet: WILLSEMI(Will Semicon) datasheet (5 pp, sha256 b010fa433a2241f3, retrieved 2026-10-27, 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