# BTA24-800CRG TO-220

**JSMSEMI** · TRIACs · TO-220AB

BTA24-800CRG TO-220 from JSMSEMI, 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 | T1 | passive | Main terminal T1 (pin 1) of the triac, the current terminal on the gate side of the device. |
| 2 | T2 | passive | Main terminal T2 (pin 2) of the triac; the TO-220AB package is non-insulated, and the datasheet does not say whether the tab is connected to T2. |
| 3 | G | input | Gate (pin 3) trigger input; gate trigger current IGT is 25 mA max for C types and 50 mA max for B types in quadrants I to III (VD=12V, RL=30Ω), and gate trigger voltage VGT is 1.5 V. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `BTA24-800CRG TO-220`
- Footprint: `Package_TO_SOT_THT:TO-220-3_Vertical`
- 3D model: TO-220AB (KiCad packages3D, STEP)
- 3D model files: `bta24-800crg-to-220-etched.step` / `bta24-800crg-to-220-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bta24-800crg-to-220.step` / `bta24-800crg-to-220.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [JSMSEMI datasheet](docs/bta24-800crg-to-220-datasheet.pdf) (2 pp, sha256 `46a5d1ad0f1af17e`, 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/bta24-800crg-to-220-datasheet.pdf)