component

MMBT3904-E

Public Made by Adom

by adom

MDD Microdiode Semiconductor 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
Name Last commit message Last updated
docs mmbt3904-e: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
viewers mmbt3904-e: viewers · Ray 1mo ago
mmbt3904-e-etched.fit.json mmbt3904-e: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
mmbt3904-e-etched.glb mmbt3904-e: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
mmbt3904-e-etched.step mmbt3904-e: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
mmbt3904-e.glb Publish 0.1.0 · Ray 1mo ago
mmbt3904-e.kicad_mod Publish 0.1.0 · Ray 1mo ago
mmbt3904-e.kicad_sym Publish 0.1.0 · Ray 1mo ago
mmbt3904-e.lbr Publish 0.1.0 · Ray 1mo ago
mmbt3904-e.step Publish 0.1.0 · Ray 1mo ago
package.json mmbt3904-e: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 1mo ago
page.json mmbt3904-e: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 1mo ago
README.md Initial commit: component/mmbt3904-e · Ray 1mo ago

MMBT3904-E

MDD Microdiode Semiconductor · Bipolar (BJT) · SOT-23

MMBT3904-E from MDD Microdiode Semiconductor, 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 control terminal with maximum Emitter-Base voltage of 6V.
2 EMITTER passive Emitter terminal with maximum Emitter-Base voltage of 6V.
3 COLLECTOR passive Collector terminal with maximum Collector-Emitter voltage of 40V, collector current of 200mA, and power dissipation of 200mW.

Key specifications

Parameter Value
Manufacturer MDD Microdiode Semiconductor
Package SOT-23
Category Transistors/Thyristors
Pins 3

CAD (KiCad official)

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

Provenance

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

  • Datasheet: MDD Microdiode Semiconductor datasheet (5 pp, sha256 f58ab3457a23b7ce, retrieved 2026-09-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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