component

MMBT3904LT1

Public Made by Adom

by adom

LGE Bipolar (BJT), SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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mmbt3904lt1-etched.step mmbt3904lt1: factory component page (tier=lcsc) · Ray 28d ago
mmbt3904lt1-hero.glb mmbt3904lt1: hero GLB from the etched model (keeps the MPN mark) · Ray 28d ago
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MMBT3904LT1

LGE · Bipolar (BJT) · SOT-23

MMBT3904LT1 from LGE, in a SOT-23. 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 BASE passive Base terminal of the NPN transistor; the datasheet's peak base current rating IBM is 100 mA.
2 EMITTER passive Emitter terminal of the NPN transistor; the datasheet's emitter-base voltage rating VEBO is 6 V (open collector).
3 COLLECTOR passive Collector terminal of the NPN transistor; the datasheet gives DC collector current IC 100 mA, peak ICM 200 mA, VCBO 60 V and VCEO 40 V.

Key specifications

Parameter Value
Manufacturer LGE
Package SOT-23
Category Transistors/Thyristors
Pins 3

CAD (KiCad official)

  • Symbol: MMBT3904LT1
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: mmbt3904lt1-etched.step / mmbt3904lt1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmbt3904lt1.step / mmbt3904lt1.glb are the bare package body.

Provenance

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

  • Datasheet: LGE datasheet (3 pp, sha256 a8dd9a10d0d88475, retrieved 2026-10-09, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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