# T3050H-6I

**STMicroelectronics** · TRIACs · TO-220AB

T3050H-6I from STMicroelectronics, in a TO-220AB. 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 | Main terminal A1 (reference terminal of the triac); the datasheet states its electrical characteristics for both polarities of A2 referenced to A1. |
| 2 | A2 | passive | Main terminal A2 of the triac, rated for 30 A RMS on-state current (IT(RMS)) and 600 V VDRM/VRRM. |
| 3 | G | input | Gate trigger input with IGT of 50 mA max at VD = 12 V, RL = 33 Ω (T3050H), VGT max 1.0 V, and peak gate current IGM of 4 A (tp = 20 µs). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | TO-220AB |
| Category | Triode/MOS Tube/Transistor |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `T3050H-6I`
- Footprint: `Package_TO_SOT_THT:TO-220-3_Vertical`
- 3D model: TO-220AB (KiCad packages3D, STEP)
- 3D model files: `t3050h-6i-etched.step` / `t3050h-6i-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `t3050h-6i.step` / `t3050h-6i.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/t3050h-6i.pdf) (13 pp, sha256 `ba5040a7bce17f41`, retrieved 2026-10-28, tier: manufacturer)
- **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/t3050h-6i-datasheet.pdf)