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BD438 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

BD438 product

BD438

Transistors - Bipolar (BJT) - Single

PNPTransistorPowerTO-126

The BD438 is a PNP epitaxial silicon transistor optimized for medium-power linear and switching circuits, featuring a 45V collector-emitter voltage and 4A current capacity in a TO-126 package.

Best for

  • Medium power switching
  • Linear amplification

Avoid if

  • High-frequency applications exceeding 3MHz
  • Applications requiring surface mount (SMD) packaging

Check before use

  • Thermal management requirements
  • Safe Operating Area (SOA)

Key specifications

Polarity
PNP
VCEO
-45 V
IC
-4 A
Power Dissipation
36 W

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Power ManagementIndustrial Control

Datasheet

BD438-STMicroelectronics-datasheet-115869.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for BD438: 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 BD438 is a PNP power transistor designed for medium-power switching and linear amplification tasks.