component

2N3904S-RTK

Public Made by Adom

by adom

KEC Semicon 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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2n3904s-rtk-etched.glb 2n3904s-rtk: factory component page (tier=lcsc) · Ray 16d ago
2n3904s-rtk-etched.step 2n3904s-rtk: factory component page (tier=lcsc) · Ray 16d ago
2n3904s-rtk-hero.glb 2n3904s-rtk: hero GLB from the etched model (keeps the MPN mark) · Ray 16d ago
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2N3904S-RTK

KEC Semicon · Bipolar (BJT) · SOT-23

2N3904S-RTK from KEC Semicon, 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 EMITTER passive Emitter terminal of the NPN transistor; the absolute maximum emitter-base voltage VEBO is 6 V.
2 BASE passive Base terminal of the NPN transistor; the absolute maximum base current IB is 50 mA.
3 COLLECTOR passive Collector terminal of the NPN transistor; the absolute maximum collector-base voltage VCBO is 60 V, collector-emitter voltage VCEO is 40 V, and collector current IC is 200 mA.

Key specifications

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

CAD (KiCad official)

  • Symbol: 2N3904S-RTK
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: 2n3904s-rtk-etched.step / 2n3904s-rtk-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 2n3904s-rtk.step / 2n3904s-rtk.glb are the bare package body.

Provenance

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

  • Datasheet: KEC Semicon datasheet (4 pp, sha256 349bb72e391ed0e6, 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