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  • The T2550-12x is a 25 A 1200 V Snubberless Triac available in three packages: D²PAK, TO-220AB and TO-220AB insulated.

    Its 1200 V blocking voltage enables use in 3-phase industrial application. Its noise immunity and dynamic commutation makes it suitable for either inductive, capacitive or resistive load control.

    Key Features

    • On-state RMS current: 25 A
    • Blocking voltage: 1200 V
    • High static community and dynamic commutation
    • IGT = 50 mA
    • High endurance reliability
    • Compact high voltage device

Recommended for you

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS10039
      1200 V 25 A Snubberless Triac
      4.0
      301.95 KB
      PDF
      DS10039

      1200 V 25 A Snubberless Triac

    • 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
      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

    • 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
      T2550-12 Snubberless™ Triacs: 25 A, 1200 V SMD/Insulated Triacs for compact AC motor drive 1.0
      1.8 MB
      PDF

      ST Thyristor Finder: SCRs and Triacs on Android and iOS

      T2550-12 Snubberless™ Triacs: 25 A, 1200 V SMD/Insulated Triacs for compact AC motor drive

    • 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**
T2550-12T
Active
TO-220AB Industrial Ecopack2

T2550-12T

Package:

TO-220AB

Material Declaration**:

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
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Quadrants
Budgetary Price (US$)*/Qty
More info
min
max
T2550-12T Available at 5 distributors

Distributor availability ofT2550-12T

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 824 1 Order Now
ARROW EUROPE 400 0 Order Now
Newark Element14 AMERICA 31 0 Order Now
MOUSER WORLDWIDE 689 1 Order Now
Farnell Element14 EUROPE 37 1 Order Now

Distributor reported inventory date: 2020-08-13

Distributor Name

DIGIKEY

Stock

824

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

400

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

31

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

689

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

37

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-13

Buy now
Active
EAR99 NEC Tube TO-220AB - - I, II, III
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):

1200

Unit Price (US$):

-

Country of Origin:

CHINA

T2550-12T

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

Distributor availability ofT2550-12T

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 824 1 Order Now
ARROW EUROPE 400 0 Order Now
Newark Element14 AMERICA 31 0 Order Now
MOUSER WORLDWIDE 689 1 Order Now
Farnell Element14 EUROPE 37 1 Order Now

Distributor reported inventory date: 2020-08-13

Distributor Name

DIGIKEY

Stock

824

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

400

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

31

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

689

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

37

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-13

ECCN (EU)

NEC

Packing Type

Tube

Package

TO-220AB

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)

1200

Budgetary Price (US$)* / Qty

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