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  • Functioning as a trigger diode with a fixed voltage reference, the DB3/DB4 series can be used in conjunction with triacs for simplified gate control circuits or as a starting element in fluorescent lamp ballasts.

    The surface mount SOT23-3L package allows compact, SMD based designs for automated manufacturing.

    Key Features

    • VBO : 32 V and 40 V
    • Low breakover current
    • Breakover voltage symmetry : 3V
    • ECOPACK®2 compliant

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CAD/EDA Symbols, Footprints and Models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
SMDB3
Active
SOT23 Industrial Ecopack2

SMDB3

Package:

SOT23

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) 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

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Budgetary Price (US$)*/Qty
More info
min
max
SMDB3 Available at 12 distributors

Distributor availability ofSMDB3

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5864 1 Order Now
COMPEL EUROPE 6201 1 Order Now
RS COMPONENTS EUROPE 1020 20 Order Now
AVNET AMERICA 3000 0 Order Now
FUTURE WORLDWIDE 21000 3000 Order Now
ARROW EUROPE 9000 0 Order Now
ARROW AMERICA 1031 1 Order Now
P&S ASIA/PACIFIC 20 1 Order Now
MOUSER WORLDWIDE 7070 1 Order Now
Farnell Element14 EUROPE 3103 1 Order Now
ANGLIA Live EUROPE 780900 100 Order Now
RUTRONIK EUROPE 51000 3000 Order Now

Distributor reported inventory date: 2020-09-24

Distributor Name

DIGIKEY

Stock

5864

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

6201

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

1020

Min.Order

20

Region

EUROPE Order Now

AVNET

Stock

3000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

21000

Min.Order

3000

Region

WORLDWIDE Order Now

ARROW

Stock

9000

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

1031

Min.Order

1

Region

AMERICA Order Now

P&S

Stock

20

Min.Order

1

Region

ASIA/PACIFIC Order Now

MOUSER

Stock

7070

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3103

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

780900

Min.Order

100

Region

EUROPE Order Now

RUTRONIK

Stock

51000

Min.Order

3000

Region

EUROPE Order Now

Distributor reported inventory date: 2020-09-24

Sample & Buy Buy now
Active
EAR99 NEC Tape And Reel SOT23 - -
MORE INFO

Junction Temperature (°C) (max):

125

Country of Origin:

MALAYSIA

SMDB3

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

Distributor availability ofSMDB3

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5864 1 Order Now
COMPEL EUROPE 6201 1 Order Now
RS COMPONENTS EUROPE 1020 20 Order Now
AVNET AMERICA 3000 0 Order Now
FUTURE WORLDWIDE 21000 3000 Order Now
ARROW EUROPE 9000 0 Order Now
ARROW AMERICA 1031 1 Order Now
P&S ASIA/PACIFIC 20 1 Order Now
MOUSER WORLDWIDE 7070 1 Order Now
Farnell Element14 EUROPE 3103 1 Order Now
ANGLIA Live EUROPE 780900 100 Order Now
RUTRONIK EUROPE 51000 3000 Order Now

Distributor reported inventory date: 2020-09-24

Distributor Name

DIGIKEY

Stock

5864

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

6201

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

1020

Min.Order

20

Region

EUROPE Order Now

AVNET

Stock

3000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

21000

Min.Order

3000

Region

WORLDWIDE Order Now

ARROW

Stock

9000

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

1031

Min.Order

1

Region

AMERICA Order Now

P&S

Stock

20

Min.Order

1

Region

ASIA/PACIFIC Order Now

MOUSER

Stock

7070

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3103

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

780900

Min.Order

100

Region

EUROPE Order Now

RUTRONIK

Stock

51000

Min.Order

3000

Region

EUROPE Order Now

Distributor reported inventory date: 2020-09-24

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT23

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

Junction Temperature (°C) (max)

125

Country of Origin

MALAYSIA

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