# TPMMQA27VT1G

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

TPMMQA27VT1G 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 1 (TVS channel), VRWM 24V max and IR 1uA max at 24V to ground, ESD ±15kV air / ±8kV contact per IEC 61000-4-2. |
| 2 | GND | power_in | Common ground/reference node of the TVS array that all I/O pins are clamped to (inferred from pin diagram and the 'any I/O pin to ground' test conditions). |
| 3 | I/O2 | passive | Protected I/O line 2 (TVS channel), VRWM 24V max and IR 1uA max at 24V to ground, ESD ±15kV air / ±8kV contact per IEC 61000-4-2. |
| 4 | I/O3 | passive | Protected I/O line 3 (TVS channel), VRWM 24V max and IR 1uA max at 24V to ground, ESD ±15kV air / ±8kV contact per IEC 61000-4-2. |
| 5 | I/O4 | passive | Protected I/O line 4 (TVS channel, the fifth line of the 5-line array), VRWM 24V max and IR 1uA max at 24V to ground. |
| 6 | I/O5 | passive | Protected I/O line 5 (TVS channel), VRWM 24V max and IR 1uA max at 24V to ground, ESD ±15kV air / ±8kV contact per IEC 61000-4-2. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `TPMMQA27VT1G`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `tpmmqa27vt1g-etched.step` / `tpmmqa27vt1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tpmmqa27vt1g.step` / `tpmmqa27vt1g.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/8590927104706506752) (4 pp, sha256 `4d3becfd31749565`, retrieved 2026-10-17, 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/tpmmqa27vt1g-datasheet.pdf)