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SPD9105W-2

Public Made by Adom

by adom

WILLSEMI Will Semicon ESD And Surge Protection (TVS/ESD), SOD-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SPD9105W-2

WILLSEMI Will Semicon · ESD And Surge Protection (TVS/ESD) · SOD-323

SPD9105W-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 Pin1 passive Bi-directional I/O line 1 of the 1-line TVS (I/O to I/O), rated for 5V max stand-off voltage and ±30kV IEC61000-4-2 contact ESD protection.
2 Pin2 passive Bi-directional I/O line 2 of the 1-line TVS (I/O to I/O), rated for 5V max stand-off voltage and ±30kV IEC61000-4-2 contact ESD protection.

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
Reverse leakage current IR 0.1 100 nA VRWM = 5V 2
Junction capacitance CJ 1 1.5 pF VR = 0V, f = 1MHz, I/O to I/O 2
Clamping voltage VCL 9 V IPP = 1A, tp = 8/20μs 2
Clamping voltage VCL 11 V IPP = 5A, tp = 8/20μs 2
Clamping voltage VCL 18 V IPP = 20A, tp = 8/20μs 2
Reverse breakdown voltage VBR 5.6 V IT = 1mA 2
Reverse maximum working voltage VRWM 5 V 2
Peak pulse power Ppk 360 W tp = 8/20μs 2
Peak pulse current IPP 20 A tp = 8/20μs 2
ESD air discharge VESD -30 30 kV IEC61000-4-2 air discharge 2
ESD contact discharge VESD -30 30 kV IEC61000-4-2 contact discharge 2
Junction temperature TJ 125 °C 2
Operating temperature TOP -40 85 °C 2
Lead temperature TL 260 °C 2
Storage temperature TSTG -55 150 °C 2

CAD (KiCad official)

  • Symbol: SPD9105W-2
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: spd9105w-2-etched.step / spd9105w-2-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); spd9105w-2.step / spd9105w-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 c4064b7f4fd11934, 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