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BT139D-800E

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by adom

UMW Thyristors (SCR)/Modules, TO-252. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Symbol & Footprint

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Datasheet

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Contents

README

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BT139D-800E

UMW · Thyristors (SCR)/Modules · TO-252

BT139D-800E from UMW, in a TO-252. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 A1 passive Main terminal 1 (MT1 / Anode 1) of the triac. Carries the on-state RMS current up to 16 A (Tc=80/90 °C). Reference terminal for the gate trigger voltage VGT.
2 A2 passive Main terminal 2 (MT2 / Anode 2) of the triac, electrically connected to the drain-side tab. Off-state repetitive peak voltage VDRM = 800 V. Handles the bidirectional load current with A1.
3 G input Gate trigger input. Peak gate current IGM = 4 A (tp=20 us), average gate power PG(AV) = 1 W. Trigger threshold: IGT <= 50 mA (Q I/II/III) at VD=12 V, RL=100 ohm; VGT <= 1.5 V. Referenced to A1.

Key specifications

Parameter Value
Manufacturer UMW
Package TO-252
Category Transistors/Thyristors
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • BT139D-800E

CAD (KiCad official)

  • Symbol: BT139D-800E
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252 (KiCad packages3D, STEP)
  • 3D model files: bt139d-800e-etched.step / bt139d-800e-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bt139d-800e.step / bt139d-800e.glb are the bare package body.

Provenance

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

  • Datasheet: UMW datasheet (8 pp, sha256 b92174bf9f2a0de3, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF