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BTA41-800BRG

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STMicroelectronics TRIACs, TO-3P. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componenttransistorsbta41-800brgfactory-2.0.0extractor-text

Verified BTA41-800BRG

by Ray · last 12 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

12 Nov 2026RayPublished by the parts factory: tier mfr, 3 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: BTA41-800BRG · TO-3P · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 9-page datasheet
  • ✓distributor: lcsc C82594, digikey 497-2430-5-ND, mouser 511-BTA41-800B
  • ✓family: TO-3P-3_Vertical
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-5qk8kuk7/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: thickness within the datasheet's package drawing (vertical TO package); standing height not judged: the drawing read gives no overall height (H, H1 or L) (datasheet p.6)
  • ✓pads: 3 pins = 3 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 3 pins agree
  • ✓symbol_text: no pin names collide
  • ✓viewers: viewers/footprint.html 17 kB, viewers/symbol.html 7 kB
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ bta41-800brg.kicad_sym✓ bta41-800brg.kicad_mod✓ bta41-800brg.step
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Ray Publish 0.1.0 985d67b 3h ago

BTA41-800BRG

STMicroelectronics · TRIACs · TO-3P

BTA41-800BRG from STMicroelectronics, in a TO-3P. 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, the reference terminal for gate triggering; the device carries up to 41 A rms on-state current (IT(RMS)) between A2 and A1.
2 A2 passive Main terminal A2 of the TRIAC, rated for 600 and 800 V repetitive peak off-state voltage (VDRM/VRRM); the tab is insulated (rated 2500 V rms).
3 G input Gate trigger input with a triggering gate current IGT of 50 mA max in quadrants I-II-III (100 mA in quadrant IV) and VGT max 1.3 V.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package TO-3P
Category Transistors
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
On-state rms current (full sine wave), TOP3 insulated IT(RMS) 40 A TOP3 Tc = 95 °C 2
Non repetitive surge peak on-state current ITSM 400 A F = 50 Hz t = 20 ms; Tj initial = 25 °C 2
Non repetitive surge peak on-state current ITSM 420 A F = 60 Hz t = 16.7 ms; Tj initial = 25 °C 2
I²t value for fusing I²t 1000 A²s tp = 10 ms 2
Critical rate of rise of on-state current dI/dt 50 A/µs IG = 2 x IGT, tr ≤ 100 ns, F = 120 Hz, Tj = 125 °C 2
Peak gate current IGM 8 A tp = 20 µs, Tj = 125 °C 2
Average gate power dissipation PG(AV) 1 W Tj = 125 °C 2
Storage junction temperature range Tstg -40 150 °C 2
Operating junction temperature range Tj -40 125 °C 2
Triggering gate current, quadrants I-II-III IGT 50 mA VD = 12 V, RL = 33 Ω; Tj = 25 °C 2
Triggering gate current, quadrant IV IGT 100 mA VD = 12 V, RL = 33 Ω; Tj = 25 °C 2
Gate trigger voltage, all quadrants VGT 1.3 V 2
Gate non-trigger voltage, all quadrants VGD 0.2 V VD = VDRM, RL = 3.3 kΩ; Tj = 125 °C 2
Holding current IH 80 mA IT = 500 mA 2
Latching current, quadrants I-III-IV IL 70 mA IG = 1.2 IGT 2
Latching current, quadrant II IL 160 mA IG = 1.2 IGT 2
Critical rate of rise of off-state voltage dV/dt 500 V/µs VD = 67% VDRM, gate open; Tj = 125 °C 2
Critical rate of rise of commutating voltage (dV/dt)c 10 V/µs (dI/dt)c = 20 A/ms; Tj = 125 °C 2
On-state voltage VT 1.55 V ITM = 60 A, tp = 380 µs; Tj = 25 °C 3
Threshold voltage Vt0 0.85 V Tj = 125 °C 3
Dynamic resistance Rd 10 mΩ Tj = 125 °C 3
Off-state leakage current IDRM, IRRM 5 µA VDRM = VRRM; Tj = 25 °C 3
Off-state leakage current IDRM, IRRM 5 mA VDRM = VRRM; Tj = 125 °C 3
Thermal resistance junction to case (AC), TOP3 insulated Rth(j-c) 0.9 °C/W Junction to case (AC) 3
Thermal resistance junction to ambient, TOP3 insulated Rth(j-a) 50 °C/W Junction to ambient 3

CAD (KiCad official)

  • Symbol: BTA41-800BRG
  • Footprint: Package_TO_SOT_THT:TO-3P-3_Vertical
  • 3D model: TO-3P (KiCad packages3D, STEP)
  • 3D model files: bta41-800brg-etched.step / bta41-800brg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bta41-800brg.step / bta41-800brg.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (9 pp, sha256 76e8bdae66209d8a, retrieved 2026-11-12, 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