# SJD12C30L01

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

SJD12C30L01 from DOWO, 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 (C suffix) TVS terminal with no polarity; 30 V working peak reverse voltage (VRWM), 33.3 to 36.8 V breakdown at 1 mA, 48.4 V max clamping at 4.13 A. |
| 2 | A2 | passive | Bidirectional (C suffix) TVS terminal with no polarity; 200 W peak pulse power (10/1000 µs), 1 µA max leakage at 30 V. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `SJD12C30L01`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files: `sjd12c30l01-etched.step` / `sjd12c30l01-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sjd12c30l01.step` / `sjd12c30l01.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [DOWO datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588904451243040768) (3 pp, sha256 `645f221c3abd1722`, 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/sjd12c30l01-datasheet.pdf)