# TPPESD12VL1BA

**TECH PUBLIC** · ESD And Surge Protection (TVS/ESD) · SOD-323

TPPESD12VL1BA from TECH PUBLIC, in a SOD-323. 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 | 1 | passive | Terminal 1 of the bidirectional TVS diode, which protects one data or power line; the reverse working voltage is 12 V max and the breakdown voltage is 13.3 V min at IT = 1 mA. |
| 2 | 2 | passive | Terminal 2 of the bidirectional TVS diode, which protects one data or power line; the reverse working voltage is 12 V max and the breakdown voltage is 13.3 V min at IT = 1 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOD-323 |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `TPPESD12VL1BA`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `tppesd12vl1ba-etched.step` / `tppesd12vl1ba-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tppesd12vl1ba.step` / `tppesd12vl1ba.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/8588943039087304704) (4 pp, sha256 `5f6c3d54c30f85d9`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-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/tppesd12vl1ba-datasheet.pdf)