BD438
Active
Education Design Win
COMPLEMENTARY SILICON POWER TRANSISTORS

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Product overview

Description

The BD433, BD435, and BD437 are silicon epitaxial-base NPN power transistors in Jedec SOT-32 plastic package, intented for use in medium power linear and switching applications.

The BD433 is especially suitable for use in car-radio output stages.

The complementary PNP types are BD434, BD436, and BD438 respectively.

  • All features

    • STMicroelectronics PREFERRED SALESTYPE
    • COMPLEMENTARY PNP - NPN DEVICES

EDA Symbols, Footprints and 3D Models

STMicroelectronics - BD438

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Symbols

Footprints

Footprints

3D model

3D models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Longevity Commitment Longevity Starting Date Material Declaration**
BD438
Active
SOT-32 Industrial Ecopack1 10 2024-06-10T00:00:00.000+02:00

BD438

Package:

SOT-32

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT-32

Grade

Industrial

RoHS Compliance Grade

Ecopack1

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

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Budgetary Price (US$)*/Qty
BD438 Available at 5 distributors

Distributor availability ofBD438

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4361 1 Buy from Distributor
AVNET AMERICA 4400 0 Buy from Distributor
MOUSER WORLDWIDE 7434 1 Buy from Distributor
Farnell Element14 EUROPE 1764 1 Buy from Distributor
ANGLIA Live EUROPE 7500 50 Buy from Distributor

Distributor reported inventory date: 2026-10-25

Distributor Name

DIGIKEY

Stock

4361

Min.Order

1

Region

WORLDWIDE Buy from Distributor

AVNET

Stock

4400

Min.Order

0

Region

AMERICA Buy from Distributor

MOUSER

Stock

7434

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

1764

Min.Order

1

ANGLIA Live

Stock

7500

Min.Order

50

Distributor reported inventory date: 2026-10-25

Active
SOT-32 Tube INDIA EAR99 NEC

BD438 Active

Part Number:

BD438

Packing Type:

Tube

RoHS:

Country of Origin:

INDIA

ECCN (EU):

NEC

Operating Temperature (°C)

Min:

-

Max:

-

Distributor availability ofBD438

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4361 1 Buy from Distributor
AVNET AMERICA 4400 0 Buy from Distributor
MOUSER WORLDWIDE 7434 1 Buy from Distributor
Farnell Element14 EUROPE 1764 1 Buy from Distributor
ANGLIA Live EUROPE 7500 50 Buy from Distributor

Distributor reported inventory date: 2026-10-25

Distributor Name

DIGIKEY

Stock

4361

Min.Order

1

Region

WORLDWIDE Buy from Distributor

AVNET

Stock

4400

Min.Order

0

Region

AMERICA Buy from Distributor

MOUSER

Stock

7434

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

1764

Min.Order

1

ANGLIA Live

Stock

7500

Min.Order

50

Distributor reported inventory date: 2026-10-25

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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors