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MMBT3904 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

MMBT3904 product

MMBT3904

Bipolar (BJT)

NPNBJTSOT-23Small Signal

The MMBT3904 is a widely used NPN small-signal transistor in a SOT-23 package, suitable for general-purpose amplification and switching tasks.

Best for

  • General purpose switching
  • Low-power amplification

Avoid if

  • High-power switching applications exceeding 200mA
  • High-voltage circuits above 40V

Check before use

  • Thermal management in dense PCB layouts
  • hFE gain classification for precision circuits

Key specifications

VCEO
40 V
IC
200 mA
hFE
100 - 400

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

General Purpose

Datasheet

f34fb9cb5f32db631e27c2a39eca3742_2311290959_amsem-MMBT3904_C7529038.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for MMBT3904: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
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Where to Buy

Real-time and catalog pricing from verified distributors

Live prices updated on demand · Catalog (~) prices may differ

Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

The MMBT3904 is a standard NPN bipolar junction transistor (BJT) commonly used in electronic circuits for signal amplification and switching.