# TPSMS12CT1G

**TECH PUBLIC** · ESD And Surge Protection (TVS/ESD) · SOT-23-6

TPSMS12CT1G from TECH PUBLIC, in a SOT-23-6. 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 | I/O1 | passive | Protected I/O line (diode cathode in the schematic) with 12V max reverse working voltage to ground and 60pF max capacitance to GND. |
| 2 | GND | power_in | Common ground/reference node of the array, to which all I/O pins are clamped, tied to the center node in the schematic. |
| 3 | I/O2 | passive | Protected I/O line with 12V max reverse working voltage to ground, ±30kV IEC 61000-4-2 air/contact ESD rating. |
| 4 | I/O3 | passive | Protected I/O line with 12V max reverse working voltage to ground and 1uA max leakage at VRWM. |
| 5 | I/O4 | passive | Protected I/O line (diode cathode toward the center node in the schematic) with 12V max reverse working voltage to ground and 30pF max between I/O pins. |
| 6 | I/O5 | passive | Protected I/O line with 12V max reverse working voltage, 12A peak pulse current (8/20µs) and 30V max clamping at 12A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOT-23-6 |
| Category | Circuit Protection |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `TPSMS12CT1G`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `tpsms12ct1g-etched.step` / `tpsms12ct1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tpsms12ct1g.step` / `tpsms12ct1g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TECH PUBLIC datasheet](docs/tpsms12ct1g-datasheet.pdf) (4 pp, sha256 `dba712615a854feb`, retrieved 2026-10-19, 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/tpsms12ct1g-datasheet.pdf)