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BTA12-800BWRG

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STMicroelectronics Thyristors (SCR)/Modules, TO-220. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BTA12-800BWRG

STMicroelectronics · Thyristors (SCR)/Modules · TO-220

BTA12-800BWRG from STMicroelectronics, 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 A1 passive Main terminal A1 of the triac (reference for gate and A2 polarity); the BTA12 is rated 12 A RMS on-state current and 800 V VDRM/VRRM for the 800 V version.
2 A2 passive Main terminal A2 of the triac, rated 12 A RMS (Tc = 90°C for the insulated package) with VDRM/VRRM of 800 V for this MPN; the tab is internally connected to A2 but isolated by a ceramic pad to 2500 V RMS.
3 G input Gate trigger input; for the BW version IGT is 50 mA max in quadrants I-II-III at VD = 12 V, RL = 30 Ω, with VGT max 1.3 V and peak gate current IGM of 4 A (tp = 20 µs).

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package TO-220
Category Transistors/Thyristors
Pins 3

CAD (KiCad official)

  • Symbol: BTA12-800BWRG
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220 (KiCad packages3D, STEP)
  • 3D model files: bta12-800bwrg-etched.step / bta12-800bwrg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bta12-800bwrg.step / bta12-800bwrg.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (7 pp, sha256 33cc8bce1323c088, retrieved 2026-10-08, 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