# SMAJ12CA-TP

**MCC Micro Commercial Components** · ESD And Surge Protection (TVS/ESD) · DO-214AC(SMA)

SMAJ12CA-TP from MCC Micro Commercial Components, in a DO-214AC(SMA). 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 (no polarity, no cathode band on CA types) with 12 V reverse stand-off, 13.3 to 14.7 V breakdown at 1 mA, and 19.9 V max clamping at 20.1 A peak pulse current. |
| 2 | A2 | passive | Second bidirectional TVS terminal, interchangeable with the other terminal, with 12 V reverse stand-off and 400 W minimum peak pulse power (10/1000 µs). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MCC Micro Commercial Components |
| Package | DO-214AC(SMA) |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `SMAJ12CA-TP`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files: `smaj12ca-tp-etched.step` / `smaj12ca-tp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smaj12ca-tp.step` / `smaj12ca-tp.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MCC Micro Commercial Components datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588911523243048960) (4 pp, sha256 `90295ba9df557c01`, 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/smaj12ca-tp-datasheet.pdf)