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  • Available either in through-hole or surface-mount packages, the BTA24, BTB24, BTA25, BTA26, BTB26 and T25 triac series is suitable for general purpose mains power AC switching.

    Key Features

    • High current triac
    • High commutation (4 quadrant) or very high commutation (3 quadrant) capability
    • Low thermal resistance with clip bonding
    • Packages are RoHS (2002/95/EC) compliant
    • BTA series UL1557 certified (File ref: 81734)

Recommended for you

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS2112
      25 A standard and Snubberless™ triacs
      10.2
      129.85 KB
      PDF
      DS2112

      25 A standard and Snubberless™ triacs

    • Description Version Size Action
      AN2986
      AC switch triggering with 3.3 V power supply
      1.4
      338 KB
      PDF
      AN4993
      How to implement a SCR or a Triac in a hybride relay application
      1.1
      991.71 KB
      PDF
      AN4363
      How to select the Triac, ACS, or ACST that fits your application
      2.1
      361.44 KB
      PDF
      AN4564
      Is a positive power supply mandatory for my application, or could a negative output work also?
      1.0
      384.04 KB
      PDF
      AN2703
      Parameter list for SCRs, TRIACs, AC switches, and DIACS
      2.6
      98.99 KB
      PDF
      AN302
      Thyristors and TRIACs: holding current - an important parameter
      3.5
      138.63 KB
      PDF
      AN440
      Triac control with a microcontroller powered from a positive supply
      4.1
      1.12 MB
      PDF
      AN2986

      AC switch triggering with 3.3 V power supply

      AN4993

      How to implement a SCR or a Triac in a hybride relay application

      AN4363

      How to select the Triac, ACS, or ACST that fits your application

      AN4564

      Is a positive power supply mandatory for my application, or could a negative output work also?

      AN2703

      Parameter list for SCRs, TRIACs, AC switches, and DIACS

      AN302

      Thyristors and TRIACs: holding current - an important parameter

      AN440

      Triac control with a microcontroller powered from a positive supply

    • Description Version Size Action
      TN1173
      Packing information for IPAD, protection, rectifiers, thyristors and AC Switches
      7.0
      433.12 KB
      PDF
      TN1173

      Packing information for IPAD, protection, rectifiers, thyristors and AC Switches

HW Model, CAD Libraries & SVD

    • Description Version Size Action
      Standard and Snubberless™ Triacs PSpice model (.lib) and symbols (.olb) 5.1
      30.62 KB
      ZIP

      Standard and Snubberless™ Triacs PSpice model (.lib) and symbols (.olb)

Publications and Collaterals

    • Description Version Size Action
      ST Thyristor Finder: SCRs and Triacs on Android and iOS 1.0
      854.07 KB
      PDF

      ST Thyristor Finder: SCRs and Triacs on Android and iOS

    • Description Version Size Action
      Thyristors, Triacs, AC switches and A.S.D™ selection guide 2.0
      1.51 MB
      PDF

      Thyristors, Triacs, AC switches and A.S.D™ selection guide

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
BTB24-600BRG
Active
TO-220AB Industrial Ecopack2
BTB24-600BWRG
Active
TO-220AB Industrial Ecopack2
BTB24-600CWRG
Active
TO-220AB Industrial Ecopack2
BTB24-800BRG
Active
TO-220AB Industrial Ecopack2
BTB24-800BWRG
Active
TO-220AB Industrial Ecopack2
BTB24-800CWRG
Active
TO-220AB Industrial Ecopack2

BTB24-600BRG

Package:

TO-220AB

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220AB

Grade

Industrial

RoHS Compliance Grade

Ecopack2

BTB24-600BWRG

Package:

TO-220AB

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220AB

Grade

Industrial

RoHS Compliance Grade

Ecopack2

BTB24-600CWRG

Package:

TO-220AB

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220AB

Grade

Industrial

RoHS Compliance Grade

Ecopack2

BTB24-800BRG

Package:

TO-220AB

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220AB

Grade

Industrial

RoHS Compliance Grade

Ecopack2

BTB24-800BWRG

Package:

TO-220AB

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220AB

Grade

Industrial

RoHS Compliance Grade

Ecopack2

BTB24-800CWRG

Package:

TO-220AB

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220AB

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
Quadrants
Triggering gate current max (mA) (I, II, III)
Triggering gate current max (mA) (I, II, III, IV)
Repetitive peak off-state voltage (V) (max)
Package
Packing Type
Budgetary Price (US$)*/Qty
More info
BTB24-600BWRG Available at 7 distributors

Distributor availability ofBTB24-600BWRG

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4204 1 Order Now
COMPEL EUROPE 1793 1 Order Now
RS COMPONENTS EUROPE 422 2 Order Now
ARROW EUROPE 1544 0 Order Now
Newark Element14 AMERICA 40 0 Order Now
MOUSER WORLDWIDE 2299 1 Order Now
RUTRONIK EUROPE 8100 50 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

4204

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

1793

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

422

Min.Order

2

Region

EUROPE Order Now

ARROW

Stock

1544

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

40

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

2299

Min.Order

1

Region

WORLDWIDE Order Now

RUTRONIK

Stock

8100

Min.Order

50

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-06

Buy now
Active
I, II, III 50, 50, 50 - 600 TO-220AB Tube 0.807 / 100
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

BTB24-800BRG Available at 4 distributors

Distributor availability ofBTB24-800BRG

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 787 1 Order Now
RS COMPONENTS EUROPE 50 1 Order Now
ARROW EUROPE 3835 0 Order Now
MOUSER WORLDWIDE 872 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

787

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

50

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

3835

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

872

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-06

Buy now
Active
I, II, III, IV - 50, 50, 50, 100 800 TO-220AB Tube 0.807 / 100
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

BTB24-600CWRG Available at 4 distributors

Distributor availability ofBTB24-600CWRG

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 7984 1 Order Now
COMPEL EUROPE 1825 1 Order Now
RS COMPONENTS EUROPE 100 1 Order Now
MOUSER WORLDWIDE 1882 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

7984

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

1825

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

100

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

1882

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-06

Buy now
Active
I, II, III 35, 35, 35 - 600 TO-220AB Tube 0.807 / 100
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

BTB24-600BRG Available at 7 distributors

Distributor availability ofBTB24-600BRG

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 429 1 Order Now
RS COMPONENTS EUROPE 230 5 Order Now
AVNET AMERICA 500 0 Order Now
ARROW EUROPE 450 0 Order Now
MOUSER WORLDWIDE 1865 1 Order Now
Farnell Element14 EUROPE 1433 1 Order Now
ANGLIA Live EUROPE 3150 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

429

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

230

Min.Order

5

Region

EUROPE Order Now

AVNET

Stock

500

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

450

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

1865

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1433

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

3150

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-06

Buy now
Active
I, II, III, IV - 50, 50, 50, 100 600 TO-220AB Tube 0.783 / 100
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

BTB24-800BWRG Available at 8 distributors

Distributor availability ofBTB24-800BWRG

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 980 1 Order Now
RS COMPONENTS EUROPE 282 2 Order Now
ARROW EUROPE 15190 0 Order Now
Newark Element14 AMERICA 466 0 Order Now
MOUSER WORLDWIDE 1989 1 Order Now
Farnell Element14 EUROPE 296 1 Order Now
ANGLIA Live EUROPE 10 1 Order Now
RUTRONIK EUROPE 250 50 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

980

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

282

Min.Order

2

Region

EUROPE Order Now

ARROW

Stock

15190

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

466

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1989

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

296

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

10

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

250

Min.Order

50

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-06

Buy now
Active
I, II, III 50, 50, 50 - 800 TO-220AB Tube 0.83 / 100
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

BTB24-800CWRG Available at 5 distributors

Distributor availability ofBTB24-800CWRG

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1825 1 Order Now
COMPEL EUROPE 499 1 Order Now
RS COMPONENTS EUROPE 55 1 Order Now
Newark Element14 AMERICA 108 0 Order Now
MOUSER WORLDWIDE 520 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

1825

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

499

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

55

Min.Order

1

Region

EUROPE Order Now

Newark Element14

Stock

108

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

520

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-06

Buy now
Active
I, II, III 35, 35, 35 - 800 TO-220AB Tube 0.83 / 100
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

BTB24-600BWRG

Marketing Status

Active

Quadrants

I, II, III

Budgetary Price (US$)*/Qty

0.807 / 100

Distributor availability ofBTB24-600BWRG

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4204 1 Order Now
COMPEL EUROPE 1793 1 Order Now
RS COMPONENTS EUROPE 422 2 Order Now
ARROW EUROPE 1544 0 Order Now
Newark Element14 AMERICA 40 0 Order Now
MOUSER WORLDWIDE 2299 1 Order Now
RUTRONIK EUROPE 8100 50 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

4204

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

1793

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

422

Min.Order

2

Region

EUROPE Order Now

ARROW

Stock

1544

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

40

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

2299

Min.Order

1

Region

WORLDWIDE Order Now

RUTRONIK

Stock

8100

Min.Order

50

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-06

Triggering gate current max (mA) (I, II, III)

50, 50, 50

Triggering gate current max (mA) (I, II, III, IV)

-

Repetitive peak off-state voltage (V) (max)

600

Package

TO-220AB

Budgetary Price (US$)* / Qty

0.807 / 100

Packing Type

Tube

ECCN (US)

EAR99

Country of Origin

CHINA

BTB24-800BRG

Marketing Status

Active

Quadrants

I, II, III, IV

Budgetary Price (US$)*/Qty

0.807 / 100

Distributor availability ofBTB24-800BRG

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 787 1 Order Now
RS COMPONENTS EUROPE 50 1 Order Now
ARROW EUROPE 3835 0 Order Now
MOUSER WORLDWIDE 872 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

787

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

50

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

3835

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

872

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-06

Triggering gate current max (mA) (I, II, III)

-

Triggering gate current max (mA) (I, II, III, IV)

50, 50, 50, 100

Repetitive peak off-state voltage (V) (max)

800

Package

TO-220AB

Budgetary Price (US$)* / Qty

0.807 / 100

Packing Type

Tube

ECCN (US)

EAR99

Country of Origin

CHINA

BTB24-600CWRG

Marketing Status

Active

Quadrants

I, II, III

Budgetary Price (US$)*/Qty

0.807 / 100

Distributor availability ofBTB24-600CWRG

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 7984 1 Order Now
COMPEL EUROPE 1825 1 Order Now
RS COMPONENTS EUROPE 100 1 Order Now
MOUSER WORLDWIDE 1882 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

7984

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

1825

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

100

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

1882

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-06

Triggering gate current max (mA) (I, II, III)

35, 35, 35

Triggering gate current max (mA) (I, II, III, IV)

-

Repetitive peak off-state voltage (V) (max)

600

Package

TO-220AB

Budgetary Price (US$)* / Qty

0.807 / 100

Packing Type

Tube

ECCN (US)

EAR99

Country of Origin

CHINA

BTB24-600BRG

Marketing Status

Active

Quadrants

I, II, III, IV

Budgetary Price (US$)*/Qty

0.783 / 100

Distributor availability ofBTB24-600BRG

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 429 1 Order Now
RS COMPONENTS EUROPE 230 5 Order Now
AVNET AMERICA 500 0 Order Now
ARROW EUROPE 450 0 Order Now
MOUSER WORLDWIDE 1865 1 Order Now
Farnell Element14 EUROPE 1433 1 Order Now
ANGLIA Live EUROPE 3150 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

429

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

230

Min.Order

5

Region

EUROPE Order Now

AVNET

Stock

500

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

450

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

1865

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1433

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

3150

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-06

Triggering gate current max (mA) (I, II, III)

-

Triggering gate current max (mA) (I, II, III, IV)

50, 50, 50, 100

Repetitive peak off-state voltage (V) (max)

600

Package

TO-220AB

Budgetary Price (US$)* / Qty

0.783 / 100

Packing Type

Tube

ECCN (US)

EAR99

Country of Origin

CHINA

BTB24-800BWRG

Marketing Status

Active

Quadrants

I, II, III

Budgetary Price (US$)*/Qty

0.83 / 100

Distributor availability ofBTB24-800BWRG

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 980 1 Order Now
RS COMPONENTS EUROPE 282 2 Order Now
ARROW EUROPE 15190 0 Order Now
Newark Element14 AMERICA 466 0 Order Now
MOUSER WORLDWIDE 1989 1 Order Now
Farnell Element14 EUROPE 296 1 Order Now
ANGLIA Live EUROPE 10 1 Order Now
RUTRONIK EUROPE 250 50 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

980

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

282

Min.Order

2

Region

EUROPE Order Now

ARROW

Stock

15190

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

466

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1989

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

296

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

10

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

250

Min.Order

50

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-06

Triggering gate current max (mA) (I, II, III)

50, 50, 50

Triggering gate current max (mA) (I, II, III, IV)

-

Repetitive peak off-state voltage (V) (max)

800

Package

TO-220AB

Budgetary Price (US$)* / Qty

0.83 / 100

Packing Type

Tube

ECCN (US)

EAR99

Country of Origin

CHINA

BTB24-800CWRG

Marketing Status

Active

Quadrants

I, II, III

Budgetary Price (US$)*/Qty

0.83 / 100

Distributor availability ofBTB24-800CWRG

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1825 1 Order Now
COMPEL EUROPE 499 1 Order Now
RS COMPONENTS EUROPE 55 1 Order Now
Newark Element14 AMERICA 108 0 Order Now
MOUSER WORLDWIDE 520 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

1825

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

499

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

55

Min.Order

1

Region

EUROPE Order Now

Newark Element14

Stock

108

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

520

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-06

Triggering gate current max (mA) (I, II, III)

35, 35, 35

Triggering gate current max (mA) (I, II, III, IV)

-

Repetitive peak off-state voltage (V) (max)

800

Package

TO-220AB

Budgetary Price (US$)* / Qty

0.83 / 100

Packing Type

Tube

ECCN (US)

EAR99

Country of Origin

CHINA

(*) 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