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FMMT458 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

FMMT458 product

FMMT458

Transistors - Bipolar (BJT) - Single

NPNHigh VoltageSOT23BJT

The FMMT458 is a 400V NPN high-voltage transistor in a SOT23 package, ideal for compact, high-voltage switching applications.

Best for

  • High voltage switching
  • Compact power circuits

Avoid if

  • Applications requiring >225mA continuous current
  • High-power dissipation environments without adequate cooling

Check before use

  • Thermal derating curves
  • Safe Operating Area (SOA)

Key specifications

VCEO
400 V
IC (Continuous)
225 mA
Package
SOT-23

Compliance & Environment

RoHS
Compliant
REACH
-
MSL
1
ECCN
-
HTSUS
-

Application

PowerGeneral

Datasheet

Diodes-Inc.-FMMT458.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for FMMT458: 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
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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 FMMT458 is a high-voltage NPN bipolar junction transistor (BJT) manufactured by Diodes Incorporated, designed for applications requiring up to 400V collector-emitter breakdown voltage.