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SPD9105W
Public Made by Adomby adom
UMW ESD And Surge Protection (TVS/ESD), SOD-323. 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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README
markdownSPD9105W
UMW · ESD And Surge Protection (TVS/ESD) · SOD-323
SPD9105W from UMW, 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 | I/O 1 | passive | Bi-directional line protection terminal with 5V max stand-off (VRWM), 5.6V min breakdown at 1mA, and ESD protection up to ±30kV contact discharge per IEC61000-4-2. |
| 2 | I/O 2 | passive | Bi-directional line protection terminal with 5V max stand-off (VRWM), 1pF typ junction capacitance I/O to I/O, and 20A (8/20µs) peak pulse current capability. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| 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 maximum working voltage | VRWM | 5 | V | 3 | |||
| Reverse leakage current | IR | 0.1 | 100 | nA | VRWM=5V | 3 | |
| Reverse breakdown voltage | V(BR) | 5.6 | V | IT=1mA | 3 | ||
| Clamping voltage | VCL | 9 | V | IPP=1A, tp=8/20μs | 3 | ||
| Clamping voltage | VCL | 11 | V | IPP=5A, tp=8/20μs | 3 | ||
| Clamping voltage | VCL | 18 | V | IPP=20A, tp=8/20μs | 3 | ||
| Junction capacitance | CJ | 1 | 1.5 | pF | VR=0V, f=1MHz, I/O to I/O | 3 | |
| Peak pulse power | PPK | 360 | W | tp=8/20µs, TA=25°C | 2 | ||
| Peak pulse current | IPP | 20 | A | tp=8/20µs, TA=25°C | 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 - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
spd9105w-etched.step/spd9105w-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);spd9105w.step/spd9105w.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UMW datasheet (8 pp, sha256
6e7d1a4043c5ca0a, 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).