component

MMBT4403

Public Made by Adom

by adom

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

componenttransistors-thyristorsmmbt4403factory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 28d ago
viewers mmbt4403: viewers · Ray 28d ago
mmbt4403-etched.glb mmbt4403: factory component page (tier=lcsc) · Ray 28d ago
mmbt4403-etched.step mmbt4403: factory component page (tier=lcsc) · Ray 28d ago
mmbt4403-hero.glb mmbt4403: hero GLB from the etched model (keeps the MPN mark) · Ray 28d ago
mmbt4403-hero.overlay.json Publish 0.1.0 · Ray 28d ago
mmbt4403.glb Publish 0.1.0 · Ray 28d ago
mmbt4403.kicad_mod Publish 0.1.0 · Ray 28d ago
mmbt4403.kicad_sym Publish 0.1.0 · Ray 28d ago
mmbt4403.lbr Publish 0.1.0 · Ray 28d ago
mmbt4403.step Publish 0.1.0 · Ray 28d ago
package.json Publish 0.1.0 · Ray 28d ago
page.json Set visibility: public · Ray 28d ago
README.md Publish 0.1.0 · Ray 28d ago

MMBT4403

TWGMC · Bipolar (BJT) · SOT-23

MMBT4403 from TWGMC, 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 input Base terminal of the PNP transistor; the datasheet gives no pin-specific limit, and the device-level emitter-base rating is VEBO -5 V.
2 EMITTER passive Emitter terminal of the PNP transistor; the datasheet gives no pin-specific limit, and the device-level emitter-base rating is VEBO -5 V.
3 COLLECTOR passive Collector terminal of the PNP transistor; device-level ratings are VCBO -40 V, VCEO -40 V and continuous collector current IC -0.6 A.

Key specifications

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

CAD (KiCad official)

  • Symbol: MMBT4403
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: mmbt4403-etched.step / mmbt4403-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmbt4403.step / mmbt4403.glb are the bare package body.

Provenance

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

  • Datasheet: TWGMC datasheet (3 pp, sha256 c36f9fd9b2984486, 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