# BTA16-800BW

**WEIDA** · TRIACs · TO-220

BTA16-800BW from WEIDA, in a TO-220. 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 (symbol label T1(1)), which carries the on-state current up to IT(RMS) 16 A. |
| 2 | T2 | passive | Main terminal 2 of the triac (symbol label T2(2)), rated for VDRM/VRRM of 800 V on the -800 variant and IT(RMS) of 16 A, and insulated from the heatsink to 2500 VRMS in the BTA (Ins) package. |
| 3 | G | input | Gate trigger input (symbol label G(3)) with IGT max 50 mA and VGT max 1.3 V for the BW grade, and peak gate current IGM of 4 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | WEIDA |
| Package | TO-220 |
| Category | Transistors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `BTA16-800BW`
- Footprint: `Package_TO_SOT_THT:TO-220-3_Vertical`
- 3D model: TO-220 (KiCad packages3D, STEP)
- 3D model files: `bta16-800bw-etched.step` / `bta16-800bw-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bta16-800bw.step` / `bta16-800bw.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [WEIDA datasheet](docs/bta16-800bw-datasheet.pdf) (7 pp, sha256 `8bae2cdc6b6d5a57`, retrieved 2026-10-28, 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/bta16-800bw-datasheet.pdf)