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  • Available in high power packages, the BTA/BTB40-41 series is suitable for general purpose AC switching.

    The BTA series provides an insulated tab (rated at 2500 V rms).

    Key Features

    • High current TRIAC
    • High commutation 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
      DS2111
      40 A standard TRIACs
      8.1
      101.16 KB
      PDF
      DS2111

      40 A standard 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**
BTA40-600B
Active
RD-91 Industrial Ecopack1
BTA40-800B
Active
RD-91 Industrial Ecopack1

BTA40-600B

Package:

RD-91

Material Declaration**:

PDF XML

Marketing Status

Active

Package

RD-91

Grade

Industrial

RoHS Compliance Grade

Ecopack1

BTA40-800B

Package:

RD-91

Material Declaration**:

PDF XML

Marketing Status

Active

Package

RD-91

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

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
BTA40-600B Available at 10 distributors

Distributor availability ofBTA40-600B

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5804 1 Order Now
COMPEL EUROPE 885 1 Order Now
RS COMPONENTS EUROPE 282 25 Order Now
AVNET AMERICA 125 0 Order Now
FUTURE WORLDWIDE 1200 1 Order Now
ARROW EUROPE 300 0 Order Now
MOUSER WORLDWIDE 977 1 Order Now
Farnell Element14 EUROPE 401 1 Order Now
ANGLIA Live EUROPE 997 1 Order Now
RUTRONIK EUROPE 1425 25 Order Now

Distributor reported inventory date: 2020-07-08

Distributor Name

DIGIKEY

Stock

5804

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

885

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

282

Min.Order

25

Region

EUROPE Order Now

AVNET

Stock

125

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

1200

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

300

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

977

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

401

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

997

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

1425

Min.Order

25

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-08

Buy now
Active
I, II, III, IV - 50, 50, 50, 100 600 RD-91 Poly Bag
MORE INFO

ECCN (US):

EAR99

Country of Origin:

PHILIPPINES

BTA40-800B Available at 9 distributors

Distributor availability ofBTA40-800B

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 238 1 Order Now
COMPEL EUROPE 105 1 Order Now
RS COMPONENTS EUROPE 1779 1 Order Now
FUTURE WORLDWIDE 3328 1 Order Now
ARROW EUROPE 2886 0 Order Now
Newark Element14 AMERICA 127 0 Order Now
ARROW AMERICA 150 25 Order Now
MOUSER WORLDWIDE 185 1 Order Now
Farnell Element14 EUROPE 1 1 Order Now

Distributor reported inventory date: 2020-07-08

Distributor Name

DIGIKEY

Stock

238

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

105

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

1779

Min.Order

1

Region

EUROPE Order Now

FUTURE

Stock

3328

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

2886

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

127

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

150

Min.Order

25

Region

AMERICA Order Now

MOUSER

Stock

185

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-08

Buy now
Active
I, II, III, IV - 50, 50, 50, 100 800 RD-91 Poly Bag
MORE INFO

ECCN (US):

EAR99

Country of Origin:

PHILIPPINES

BTA40-600B

Marketing Status

Active

Quadrants

I, II, III, IV

Budgetary Price (US$)*/Qty

Distributor availability ofBTA40-600B

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5804 1 Order Now
COMPEL EUROPE 885 1 Order Now
RS COMPONENTS EUROPE 282 25 Order Now
AVNET AMERICA 125 0 Order Now
FUTURE WORLDWIDE 1200 1 Order Now
ARROW EUROPE 300 0 Order Now
MOUSER WORLDWIDE 977 1 Order Now
Farnell Element14 EUROPE 401 1 Order Now
ANGLIA Live EUROPE 997 1 Order Now
RUTRONIK EUROPE 1425 25 Order Now

Distributor reported inventory date: 2020-07-08

Distributor Name

DIGIKEY

Stock

5804

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

885

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

282

Min.Order

25

Region

EUROPE Order Now

AVNET

Stock

125

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

1200

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

300

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

977

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

401

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

997

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

1425

Min.Order

25

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-08

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

RD-91

Budgetary Price (US$)* / Qty

Packing Type

Poly Bag

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

BTA40-800B

Marketing Status

Active

Quadrants

I, II, III, IV

Budgetary Price (US$)*/Qty

Distributor availability ofBTA40-800B

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 238 1 Order Now
COMPEL EUROPE 105 1 Order Now
RS COMPONENTS EUROPE 1779 1 Order Now
FUTURE WORLDWIDE 3328 1 Order Now
ARROW EUROPE 2886 0 Order Now
Newark Element14 AMERICA 127 0 Order Now
ARROW AMERICA 150 25 Order Now
MOUSER WORLDWIDE 185 1 Order Now
Farnell Element14 EUROPE 1 1 Order Now

Distributor reported inventory date: 2020-07-08

Distributor Name

DIGIKEY

Stock

238

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

105

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

1779

Min.Order

1

Region

EUROPE Order Now

FUTURE

Stock

3328

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

2886

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

127

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

150

Min.Order

25

Region

AMERICA Order Now

MOUSER

Stock

185

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-08

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

RD-91

Budgetary Price (US$)* / Qty

Packing Type

Poly Bag

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

(*) 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