# TPSMAJ14CA

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

TPSMAJ14CA from TECH PUBLIC, 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 | Bi-directional TVS terminal (no polarity, no cathode band on the CA type) with 14.0 V reverse stand-off, 15.6 V to 17.2 V breakdown at 1 mA, and 23.2 V maximum clamping at 17.2 A peak pulse current. |
| 2 | A2 | passive | Second bi-directional TVS terminal, interchangeable with the first, with 14.0 V reverse stand-off, 1 uA maximum reverse leakage, and 400 W minimum peak pulse power on a 10/1000 us waveform. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `TPSMAJ14CA`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files: `tpsmaj14ca-etched.step` / `tpsmaj14ca-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tpsmaj14ca.step` / `tpsmaj14ca.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TECH PUBLIC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604435853322035200) (4 pp, sha256 `fb1e23eaeb378354`, retrieved 2026-10-31, 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/tpsmaj14ca-datasheet.pdf)