What is the MMBT3904 used for?

It is primarily used for medium-power amplification and switching applications in electronic circuits.

What are the key specifications of the MMBT3904?

Key specs include a 40V VCEO, 200mA collector current, 300MHz transition frequency, and a DC current gain (hFE) of 100-300 at 10mA.

What should engineers review before using the MMBT3904?

Engineers should review the power dissipation limits (200mW) and ensure the operating temperature range (-55°C to +150°C) is suitable for the application environment.

What should sourcing teams check before buying MMBT3904?

Check lifecycle (Active), compliance data, distributor availability, and approved-source coverage. Current sourcing signal: Low; readiness: easy.

What is the pinout of MMBT3904?

Use the MMBT3904 datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about MMBT3904 pinout to locate pins, power rails, and interface signals before layout.

MMBT3904 Datasheet, Specs, Alternatives & ECAD | YONGYUTAI

AI summary

The MMBT3904 is a standard, widely-used NPN BJT in a SOT-23 package, ideal for general-purpose switching and amplification.

Best for

General purpose switching
Signal amplification
Low-power driver circuits

Avoid if

High-power applications exceeding 200mW
High-voltage circuits above 40V

Check before use

Thermal management in compact layouts
Gain requirements at specific collector currents

Key specifications

VCEO: 40 V
IC: 200 mA
fT: 300 MHz
Package: SOT-23

Compliance & Environment

RoHS: -
REACH: -
MSL: -
ECCN: -
HTSUS: -

Application

General PurposeAmplification

Datasheet

pYYBAGLgj7-Aa57CACinXPjjI60100.pdf

800 KB

Datasheet AI

CAD Models

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

EDA Symbol

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PCB Footprint

Land pattern for PCB layout

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3D Model

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Where to Buy

Real-time and catalog pricing from verified distributors

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 general-purpose NPN bipolar junction transistor (BJT) housed in a SOT-23 surface-mount package.

AI summary

Best for

Avoid if

Check before use

Key specifications

Compliance & Environment

Application

Datasheet

CAD Models

Where to Buy

Alternative components

Design and risk insights

Questions & answers

What is the MMBT3904?+×

What is the MMBT3904 used for?+×

What are the key specifications of the MMBT3904?+×

What should engineers review before using the MMBT3904?+×

What should sourcing teams check before buying MMBT3904?+×

What is the pinout of MMBT3904?+×