# SMAJ30CA-AT

**Brightking** · ESD And Surge Protection (TVS/ESD) · SMA(DO-214AC)

SMAJ30CA-AT from Brightking, in a SMA(DO-214AC). 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 (SMAJ30CA-AT), interchangeable with terminal 2, with VRWM 30.0 V, VBR 33.30~36.80 V at 1 mA and VC 48.4 V at 8.3 A. |
| 2 | A2 | passive | Bidirectional TVS terminal 2 (SMAJ30CA-AT), interchangeable with terminal 1, with no cathode band marked on bi-directional models. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Brightking |
| Package | SMA(DO-214AC) |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `SMAJ30CA-AT`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files: `smaj30ca-at-etched.step` / `smaj30ca-at-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smaj30ca-at.step` / `smaj30ca-at.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Brightking datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588905692794638336) (6 pp, sha256 `b89bf590a7f5b511`, 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/smaj30ca-at-datasheet.pdf)