# BT134-600T

**WEIDA** · TRIACs · TO-252

BT134-600T from WEIDA, in a TO-252. 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 | T1 | passive | Main terminal 1 of the triac (MT1), which carries the on-state current up to IT(RMS) 4 A and is the reference for gate triggering. |
| 2 | T2 | passive | Main terminal 2 of the triac (MT2), which blocks repetitive peak off-state and reverse voltage VDRM/VRRM of 600 V for the -600 part and carries IT(RMS) 4 A. |
| 3 | G | input | Gate trigger input, where the T grade needs IGT of at most 5 mA in all quadrants (VD=12 V, RL=33 Ω) and VGT of at most 1.3 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | WEIDA |
| Package | TO-252 |
| Category | Triode/MOS Tube/Transistor |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `BT134-600T`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files: `bt134-600t-etched.step` / `bt134-600t-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bt134-600t.step` / `bt134-600t.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [WEIDA datasheet](docs/bt134-600t-datasheet.pdf) (9 pp, sha256 `8d609ec182d0fef5`, retrieved 2026-10-27, tier: lcsc)
- **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/bt134-600t-datasheet.pdf)