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1200V 25A Snubberless™ Triac
  • active Active

Its 1200 V blocking voltage enables use in 3-phase industrial application. Its noise immunity and dynamic commutation makes it suitable for either for inductive, capacitive or resistive load control. The T2550-12 is available in two packages: D²PAK and TO-220AB.

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Errata Sheet
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Key Features

  • On-state current: 25 A
  • Blocking voltage: 1200 V
  • High static and dynamic commutation
  • IGT= 50 mA

Design Resources


Technical Documentation

Product Specifications

Description Version Size
DS10039: 1200 V 25 A Snubberless™ Triac
2.0 380 KB

Application Notes

Description Version Size
AN2703: Parameter list for SCRs, TRIACs, AC switches, and DIACS
2.3 99 KB
AN302: Thyristors and TRIACs: holding current - an important parameter
3.2 138 KB
AN4363: How to select the right Triac
1.4 337 KB

HW Model & CAD Libraries

HW Model & CAD Libraries

Description Version Size
Standard and Snubberless™ Triacs PSpice model (.lib) and symbols (.olb)
1.0 29 KB

Publications and Collaterals

Selection Guides

Description Version Size
Thyristors, Triacs, AC switches and A.S.D™ selection guide
1.0 1,717 KB

Sample & Buy

Part Number Marketing StatusQuadrantsTriggering gate current max (I, II, III) Triggering gate current max (I, II, III, IV) Repetitive peak off-state voltage (max) PackagePacking TypeOrder From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
T2550-12TActiveI, II, III50, 50, 501200TO-220ABTube-2.226Distributor reported inventory date: 2015-05-30
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA10001000
Farnell Element14Order NowEUROPE3531

(*) 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
(**) The Material Declaration forms available on 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.
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