component
SMF3.3A
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KUU ESD And Surge Protection (TVS/ESD), SOD-123. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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SMF3.3A
KUU · ESD And Surge Protection (TVS/ESD) · SOD-123
SMF3.3A from KUU, in a SOD-123. 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 | K | passive | Cathode (color band end) of the unidirectional TVS diode, with VRWM 3.3 V, VBR 5.2 V min to 6.0 V max at 10 mA, and VC 8 V at IPP 25 A. |
| 2 | A | passive | Anode of the unidirectional TVS diode, with 200 W peak pulse power (10/1000µs) and IR 400 µA max at VRWM 3.3 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | KUU |
| Package | SOD-123 |
| Category | Circuit Protection |
| Pins | 2 |
CAD (KiCad official)
- Symbol:
SMF3.3A - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
smf3-3a-etched.step/smf3-3a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smf3-3a.step/smf3-3a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: KUU datasheet (2 pp, sha256
47666cfcf0175edb, retrieved 2026-10-09, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).
# SMF3.3A
**KUU** · ESD And Surge Protection (TVS/ESD) · SOD-123
SMF3.3A from KUU, in a SOD-123. 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 | K | passive | Cathode (color band end) of the unidirectional TVS diode, with VRWM 3.3 V, VBR 5.2 V min to 6.0 V max at 10 mA, and VC 8 V at IPP 25 A. |
| 2 | A | passive | Anode of the unidirectional TVS diode, with 200 W peak pulse power (10/1000µs) and IR 400 µA max at VRWM 3.3 V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | KUU |
| Package | SOD-123 |
| Category | Circuit Protection |
| Pins | 2 |
## CAD (KiCad official)
- Symbol: `SMF3.3A`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files: `smf3-3a-etched.step` / `smf3-3a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smf3-3a.step` / `smf3-3a.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [KUU datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590226294727208960) (2 pp, sha256 `47666cfcf0175edb`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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](docs/smf3-3a-datasheet.pdf)