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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**
BTA24-600BWRG
Active
TO-220AB Ins Industrial Ecopack2
BTA24-600CWRG
Active
TO-220AB Ins Industrial Ecopack2
BTA24-800BWRG
Active
TO-220AB Ins Industrial Ecopack2
BTA24-800CWRG
Active
TO-220AB Ins Industrial Ecopack2

BTA24-600BWRG

Package:

TO-220AB Ins

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220AB Ins

Grade

Industrial

RoHS Compliance Grade

Ecopack2

BTA24-600CWRG

Package:

TO-220AB Ins

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220AB Ins

Grade

Industrial

RoHS Compliance Grade

Ecopack2

BTA24-800BWRG

Package:

TO-220AB Ins

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220AB Ins

Grade

Industrial

RoHS Compliance Grade

Ecopack2

BTA24-800CWRG

Package:

TO-220AB Ins

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220AB Ins

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
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Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Quadrants
Budgetary Price (US$)*/Qty
More info
min
max
BTA24-800CWRG Available at 6 distributors

Distributor availability ofBTA24-800CWRG

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1438 1 Order Now
RS COMPONENTS EUROPE 935 1 Order Now
ARROW EUROPE 17582 0 Order Now
ARROW AMERICA 9935 1000 Order Now
MOUSER WORLDWIDE 16680 1 Order Now
Farnell Element14 EUROPE 2170 1 Order Now

Distributor reported inventory date: 2020-08-02

Distributor Name

DIGIKEY

Stock

1438

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

935

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

17582

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

9935

Min.Order

1000

Region

AMERICA Order Now

MOUSER

Stock

16680

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2170

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-02

Buy now
Active
EAR99 NEC Tube TO-220AB Ins - - I, II, III 1.024 / 50
MORE INFO

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

Unit Price (US$):

1.024

Country of Origin:

CHINA

BTA24-600BWRG Available at 13 distributors

Distributor availability ofBTA24-600BWRG

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 7136 1 Order Now
YOSUN ASIA/PACIFIC 1480 1 Order Now
COMPEL EUROPE 2107 1 Order Now
RS COMPONENTS EUROPE 389 2 Order Now
AVNET AMERICA 250 0 Order Now
FUTURE WORLDWIDE 956 1 Order Now
ARROW EUROPE 3344 0 Order Now
Newark Element14 AMERICA 1349 0 Order Now
ARROW AMERICA 60253 1000 Order Now
MOUSER WORLDWIDE 140 1 Order Now
Farnell Element14 EUROPE 1377 1 Order Now
ANGLIA Live EUROPE 12608 1 Order Now
RUTRONIK EUROPE 700 50 Order Now

Distributor reported inventory date: 2020-08-04

Distributor Name

DIGIKEY

Stock

7136

Min.Order

1

Region

WORLDWIDE Order Now

YOSUN

Stock

1480

Min.Order

1

Region

ASIA/PACIFIC Order Now

COMPEL

Stock

2107

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

389

Min.Order

2

Region

EUROPE Order Now

AVNET

Stock

250

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

956

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

3344

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

1349

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

60253

Min.Order

1000

Region

AMERICA Order Now

MOUSER

Stock

140

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1377

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

12608

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

700

Min.Order

50

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-04

Buy now
Active
EAR99 NEC Tube TO-220AB Ins - - I, II, III 0.999 / 50
MORE INFO

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

Unit Price (US$):

0.999

Country of Origin:

CHINA

BTA24-600CWRG Available at 7 distributors

Distributor availability ofBTA24-600CWRG

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2269 1 Order Now
RS COMPONENTS EUROPE 663 1 Order Now
AVNET AMERICA 25403 0 Order Now
ARROW EUROPE 930 0 Order Now
Newark Element14 AMERICA 1 0 Order Now
ARROW AMERICA 17764 1000 Order Now
MOUSER WORLDWIDE 1891 1 Order Now

Distributor reported inventory date: 2020-08-03

Distributor Name

DIGIKEY

Stock

2269

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

663

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

25403

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

930

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

1

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

17764

Min.Order

1000

Region

AMERICA Order Now

MOUSER

Stock

1891

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-08-03

Sample & Buy Buy now
Active
EAR99 NEC Tube TO-220AB Ins - - I, II, III 0.999 / 50
MORE INFO

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

Unit Price (US$):

0.999

Country of Origin:

CHINA

BTA24-800BWRG Available at 10 distributors

Distributor availability ofBTA24-800BWRG

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2610 1 Order Now
COMPEL EUROPE 5776 1 Order Now
RS COMPONENTS EUROPE 4870 5 Order Now
AVNET AMERICA 5421 0 Order Now
ARROW EUROPE 4022 0 Order Now
Newark Element14 AMERICA 187 0 Order Now
ARROW AMERICA 11311 1 Order Now
MOUSER WORLDWIDE 596 1 Order Now
Farnell Element14 EUROPE 1547 1 Order Now
RUTRONIK EUROPE 5200 50 Order Now

Distributor reported inventory date: 2020-08-04

Distributor Name

DIGIKEY

Stock

2610

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

5776

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

4870

Min.Order

5

Region

EUROPE Order Now

AVNET

Stock

5421

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

4022

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

187

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

11311

Min.Order

1

Region

AMERICA Order Now

MOUSER

Stock

596

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1547

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

5200

Min.Order

50

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-04

Buy now
Active
EAR99 NEC Tube TO-220AB Ins - - I, II, III 1.024 / 50
MORE INFO

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

Unit Price (US$):

1.024

Country of Origin:

CHINA

BTA24-800CWRG

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.024 / 50

Distributor availability ofBTA24-800CWRG

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1438 1 Order Now
RS COMPONENTS EUROPE 935 1 Order Now
ARROW EUROPE 17582 0 Order Now
ARROW AMERICA 9935 1000 Order Now
MOUSER WORLDWIDE 16680 1 Order Now
Farnell Element14 EUROPE 2170 1 Order Now

Distributor reported inventory date: 2020-08-02

Distributor Name

DIGIKEY

Stock

1438

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

935

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

17582

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

9935

Min.Order

1000

Region

AMERICA Order Now

MOUSER

Stock

16680

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2170

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-02

ECCN (EU)

NEC

Packing Type

Tube

Package

TO-220AB Ins

Operating Temperature (°C)

(min)

-

(max)

-

Quadrants

I, II, III

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

Budgetary Price (US$)* / Qty

1.024 / 50

Country of Origin

CHINA

BTA24-600BWRG

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.999 / 50

Distributor availability ofBTA24-600BWRG

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 7136 1 Order Now
YOSUN ASIA/PACIFIC 1480 1 Order Now
COMPEL EUROPE 2107 1 Order Now
RS COMPONENTS EUROPE 389 2 Order Now
AVNET AMERICA 250 0 Order Now
FUTURE WORLDWIDE 956 1 Order Now
ARROW EUROPE 3344 0 Order Now
Newark Element14 AMERICA 1349 0 Order Now
ARROW AMERICA 60253 1000 Order Now
MOUSER WORLDWIDE 140 1 Order Now
Farnell Element14 EUROPE 1377 1 Order Now
ANGLIA Live EUROPE 12608 1 Order Now
RUTRONIK EUROPE 700 50 Order Now

Distributor reported inventory date: 2020-08-04

Distributor Name

DIGIKEY

Stock

7136

Min.Order

1

Region

WORLDWIDE Order Now

YOSUN

Stock

1480

Min.Order

1

Region

ASIA/PACIFIC Order Now

COMPEL

Stock

2107

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

389

Min.Order

2

Region

EUROPE Order Now

AVNET

Stock

250

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

956

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

3344

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

1349

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

60253

Min.Order

1000

Region

AMERICA Order Now

MOUSER

Stock

140

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1377

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

12608

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

700

Min.Order

50

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-04

ECCN (EU)

NEC

Packing Type

Tube

Package

TO-220AB Ins

Operating Temperature (°C)

(min)

-

(max)

-

Quadrants

I, II, III

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

Budgetary Price (US$)* / Qty

0.999 / 50

Country of Origin

CHINA

BTA24-600CWRG

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.999 / 50

Distributor availability ofBTA24-600CWRG

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2269 1 Order Now
RS COMPONENTS EUROPE 663 1 Order Now
AVNET AMERICA 25403 0 Order Now
ARROW EUROPE 930 0 Order Now
Newark Element14 AMERICA 1 0 Order Now
ARROW AMERICA 17764 1000 Order Now
MOUSER WORLDWIDE 1891 1 Order Now

Distributor reported inventory date: 2020-08-03

Distributor Name

DIGIKEY

Stock

2269

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

663

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

25403

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

930

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

1

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

17764

Min.Order

1000

Region

AMERICA Order Now

MOUSER

Stock

1891

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-08-03

ECCN (EU)

NEC

Packing Type

Tube

Package

TO-220AB Ins

Operating Temperature (°C)

(min)

-

(max)

-

Quadrants

I, II, III

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

Budgetary Price (US$)* / Qty

0.999 / 50

Country of Origin

CHINA

BTA24-800BWRG

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.024 / 50

Distributor availability ofBTA24-800BWRG

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2610 1 Order Now
COMPEL EUROPE 5776 1 Order Now
RS COMPONENTS EUROPE 4870 5 Order Now
AVNET AMERICA 5421 0 Order Now
ARROW EUROPE 4022 0 Order Now
Newark Element14 AMERICA 187 0 Order Now
ARROW AMERICA 11311 1 Order Now
MOUSER WORLDWIDE 596 1 Order Now
Farnell Element14 EUROPE 1547 1 Order Now
RUTRONIK EUROPE 5200 50 Order Now

Distributor reported inventory date: 2020-08-04

Distributor Name

DIGIKEY

Stock

2610

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

5776

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

4870

Min.Order

5

Region

EUROPE Order Now

AVNET

Stock

5421

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

4022

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

187

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

11311

Min.Order

1

Region

AMERICA Order Now

MOUSER

Stock

596

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1547

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

5200

Min.Order

50

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-04

ECCN (EU)

NEC

Packing Type

Tube

Package

TO-220AB Ins

Operating Temperature (°C)

(min)

-

(max)

-

Quadrants

I, II, III

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

Budgetary Price (US$)* / Qty

1.024 / 50

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