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FMMT491ATC AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

FMMT491ATC product

FMMT491ATC

Transistors - Bipolar (BJT) - Single

NPNMedium PowerSOT23AEC-Q101

The FMMT491ATC is a 40V NPN medium power transistor designed for high-reliability applications, housed in a compact SOT23 package.

Best for

  • Automotive electronics
  • Medium power switching
  • High-reliability applications

Avoid if

  • Applications requiring >1A continuous current
  • High-power dissipation environments exceeding 500mW

Check before use

  • Thermal derating requirements
  • PCB copper coverage for heat dissipation

Key specifications

VCEO
40 V
IC (Continuous)
1 A
PD
500 mW

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
1
ECCN
EAR99
HTSUS
8541290095.0

Application

AutomotivePower Management

Datasheet

Diodes-Inc.-FMMT491ATC.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for FMMT491ATC: 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
STEP file for mechanical design
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Where to Buy

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Alternative components

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

Design and risk insights

Questions & answers

It is a 40V NPN silicon planar medium power transistor, AEC-Q101 qualified for automotive and high-reliability use.