component

SPD84581C-2

Public Made by Adom

by adom

WILLSEMI(Will Semicon) TVS, SMC. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componenttvs-fuse-board level protectionspd84581c-2factory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
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 9d ago
viewers spd84581c-2: viewers · Ray 9d ago
package.json Publish 0.1.0 · Ray 9d ago
page.json Set visibility: public · Ray 9d ago
README.md Publish 0.1.0 · Ray 9d ago
spd84581c-2-etched.glb Publish 0.1.0 · Ray 9d ago
spd84581c-2-etched.step spd84581c-2: factory component page (tier=lcsc) · Ray 9d ago
spd84581c-2-hero.glb spd84581c-2: hero GLB from the etched model (keeps the MPN mark) · Ray 9d ago
spd84581c-2-hero.overlay.json Publish 0.1.0 · Ray 9d ago
spd84581c-2.glb Publish 0.1.0 · Ray 9d ago
spd84581c-2.kicad_mod Publish 0.1.0 · Ray 9d ago
spd84581c-2.kicad_sym Publish 0.1.0 · Ray 9d ago
spd84581c-2.lbr Publish 0.1.0 · Ray 9d ago
spd84581c-2.step Publish 0.1.0 · Ray 9d ago

SPD84581C-2

WILLSEMI(Will Semicon) · TVS · SMC

SPD84581C-2 from WILLSEMI(Will Semicon), in a SMC. 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 TVS diode terminal 1 (bidirectional, non-polarized per schematic) protecting against transients up to 3000W 10/1000µs peak pulse power, 58V reverse standoff voltage.
2 Pin2 passive TVS diode terminal 2 (bidirectional, non-polarized per schematic) with 64.4V to 74.1V breakdown at 1mA and 93.6V maximum clamping at 32.1A.

Key specifications

Parameter Value
Manufacturer WILLSEMI(Will Semicon)
Package SMC
Category TVS/Fuse/Board Level 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
Breakdown Voltage (min) VBR 64.4 74.1 V @ IT = 1 mA 2
Reverse Stand off Voltage VR 58 V TA=25 °C 2
Maximum Clamping Voltage VC 93.6 V @ IPP = 32.1 A 2
Maximum Reverse Leakage IR 2 μA @ VR = 58 V 2
Maximum Peak Pulse Current IPP 32.1 A 2
Peak Pulse Power PPPM 3000 W 10/1000µs waveform 2
Peak Pulse Current IPPM 32.1 A 10/1000µs waveform 2
Junction temperature TJ -55 150 ℃ 2
Operating temperature TOP -40 125 ℃ 2
Storage Temperature Range TSTG -55 150 ℃ 2

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts Copper (0.03mm thick) Copper Pads to each terminal. 2

CAD (KiCad official)

  • Symbol: SPD84581C-2
  • Footprint: Diode_SMD:D_SMC
  • 3D model: SMC (KiCad packages3D, STEP)
  • 3D model files: spd84581c-2-etched.step / spd84581c-2-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); spd84581c-2.step / spd84581c-2.glb are the bare package body.

Provenance

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

  • Datasheet: WILLSEMI(Will Semicon) datasheet (3 pp, sha256 fd6b9dfb5eb274d4, 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