# SJD12A30L01

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

SJD12A30L01 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 | Cathode | passive | Cathode of the unidirectional TVS (marked by the cathode band), connected to the protected I/O line, with 30.0 V reverse stand-off voltage, 33.30 to 36.80 V breakdown at 1 mA and 48.4 V maximum clamping at 4.2 A. |
| 2 | Anode | passive | Anode of the unidirectional TVS, normally connected to ground/return, for a 200 W peak pulse power (10x1000 µs) device. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `SJD12A30L01`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files: `sjd12a30l01-etched.step` / `sjd12a30l01-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sjd12a30l01.step` / `sjd12a30l01.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [FUXINSEMI datasheet](docs/sjd12a30l01-datasheet.pdf) (6 pp, sha256 `3e5bbb679e04d4ea`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (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/sjd12a30l01-datasheet.pdf)