# SMF4L13CA

**FUXINSEMI** · ESD And Surge Protection (TVS/ESD) · SOD-123

SMF4L13CA from FUXINSEMI, 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 | A1 | passive | Bidirectional TVS terminal 1 (interchangeable with terminal 2), working peak reverse voltage 13.0 V, breakdown 14.40-15.90 V at 1 mA, max clamping 20.0 V at 18.6 A. |
| 2 | A2 | passive | Bidirectional TVS terminal 2 (interchangeable with terminal 1), max reverse leakage 1.0 µA at 13.0 V, 400 W peak pulse power (10x1000 µs). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | FUXINSEMI |
| Package | SOD-123 |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `SMF4L13CA`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files: `smf4l13ca-etched.step` / `smf4l13ca-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smf4l13ca.step` / `smf4l13ca.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [FUXINSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8596117867322347520) (6 pp, sha256 `bed6daae099f2680`, 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/smf4l13ca-datasheet.pdf)