component

MMBT3904 1AM

Public Made by Adom

by adom

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

componenttransistors-thyristorsmmbt3904 1amfactory-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 mmbt3904-1am: viewers · Ray 28d ago
mmbt3904-1am-etched.glb mmbt3904-1am: factory component page (tier=lcsc) · Ray 28d ago
mmbt3904-1am-etched.step mmbt3904-1am: factory component page (tier=lcsc) · Ray 28d ago
mmbt3904-1am-hero.glb mmbt3904-1am: hero GLB from the etched model (keeps the MPN mark) · Ray 28d ago
mmbt3904-1am-hero.overlay.json Publish 0.1.0 · Ray 28d ago
mmbt3904-1am.glb Publish 0.1.0 · Ray 28d ago
mmbt3904-1am.kicad_mod Publish 0.1.0 · Ray 28d ago
mmbt3904-1am.kicad_sym Publish 0.1.0 · Ray 28d ago
mmbt3904-1am.lbr Publish 0.1.0 · Ray 28d ago
mmbt3904-1am.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

MMBT3904 1AM

YONGYUTAI · Bipolar (BJT) · SOT-23

MMBT3904 1AM from YONGYUTAI, 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 of the NPN transistor; Emitter-Base voltage VEBO max 6 V.
2 EMITTER passive Emitter of the NPN transistor; Emitter-Base voltage VEBO max 6 V.
3 COLLECTOR passive Collector of the NPN transistor; VCBO 60 V, VCEO 40 V, continuous collector current 0.2 A.

Key specifications

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

CAD (KiCad official)

  • Symbol: MMBT3904 1AM
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: mmbt3904-1am-etched.step / mmbt3904-1am-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmbt3904-1am.step / mmbt3904-1am.glb are the bare package body.

Provenance

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

  • Datasheet: YONGYUTAI datasheet (2 pp, sha256 beaf22fd315e6a16, retrieved 2026-10-09, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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