component

MMBT4401LT1G

Public Made by Adom

by adom

onsemi Bipolar (BJT), SOT-23. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

componenttransistors-thyristorsmmbt4401lt1g
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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs mmbt4401lt1g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
viewers mmbt4401lt1g: viewers · Ray 1mo ago
mmbt4401lt1g-etched.fit.json mmbt4401lt1g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
mmbt4401lt1g-etched.glb mmbt4401lt1g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
mmbt4401lt1g-etched.step mmbt4401lt1g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
mmbt4401lt1g.glb Publish 0.1.0 · Ray 1mo ago
mmbt4401lt1g.kicad_mod Publish 0.1.0 · Ray 1mo ago
mmbt4401lt1g.kicad_sym Publish 0.1.0 · Ray 1mo ago
mmbt4401lt1g.lbr Publish 0.1.0 · Ray 1mo ago
mmbt4401lt1g.step Publish 0.1.0 · Ray 1mo ago
package.json Publish 0.1.0 · Ray 1mo ago
page.json mmbt4401lt1g: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 1mo ago
README.md mmbt4401lt1g: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 1mo ago

MMBT4401LT1G

onsemi · Bipolar (BJT) · SOT-23

MMBT4401LT1G from onsemi, in a SOT-23. 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 BASE input Base terminal of the NPN BJT. Emitter-base breakdown voltage VEBO = 6.0 V; VBE(sat) up to 0.95 V at IC = 150 mA, IB = 15 mA.
2 EMITTER passive Emitter terminal of the NPN BJT. Common return for base-emitter and collector-emitter junctions; VCEO = 40 V, VEBO = 6.0 V.
3 COLLECTOR passive Collector terminal of the NPN BJT. VCBO = 60 V, VCEO = 40 V, continuous IC = 600 mA (peak 900 mA); VCE(sat) 0.4 V @ IC = 150 mA.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • MMBT4401LT1G
  • MMBT4401LT1GLT3G

CAD (KiCad official)

  • Symbol: MMBT4401LT1G
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: mmbt4401lt1g-etched.step / mmbt4401lt1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmbt4401lt1g.step / mmbt4401lt1g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (7 pp, sha256 ec9a51f6e1ef89d0, 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