# SA12CA

**Brightking** · ESD And Surge Protection (TVS/ESD) · DO-15

SA12CA from Brightking, in a DO-15. 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 | First axial lead of the bidirectional SA12CA TVS (VRWM 12.0V, VBR 13.30~14.70V at 1mA, VC 19.9V at 25.6A IPP); either lead may be used since there is no polarity band on bidirectional models. |
| 2 | A2 | passive | Second axial lead of the bidirectional SA12CA TVS (VRWM 12.0V, VBR 13.30~14.70V at 1mA, VC 19.9V at 25.6A IPP); interchangeable with the other lead as the marking has no cathode band on bidirectional models. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Brightking |
| Package | DO-15 |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `SA12CA`
- Footprint: `Diode_THT:D_DO-15_P12.70mm_Horizontal`
- 3D model: DO-15 (KiCad packages3D, STEP)

## Provenance

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

- **Datasheet:** [Brightking datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588896614849122304) (6 pp, sha256 `f0dc01ead7acea2f`, retrieved 2026-10-13, 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/sa12ca-datasheet.pdf)