component
SPD84581C-2
Public Made by Adomby adom
WILLSEMI(Will Semicon) TVS, SMC. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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
markdownSPD84581C-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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);spd84581c-2.step/spd84581c-2.glbare 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, primaryclaude-sonnet-5-5(text), consensusclaude-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).