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  • The device is packaged in a through-hole TO-3PF full plastic insulated.

    The T4050-6PF is optimized for the ON/OFF function or phase angle control in applications such as static relays, heating regulation, induction motor starting circuits, light dimmers, motor speed controllers and in many other industrial applications where high immunity and high surge current are required.

    Key Features

    • High current Triac
    • High surge current = 400 A
    • Max. blocking voltage = VDRM, VRRM = 600 V
    • Max. surge voltage = VDSM, VRSM = 700 V
    • IGT maximum = 50 mA
    • High static and dynamic commutation:
      • (dI/dt)c = 25.1 A/ms
      • dV/dt = 1000 V/μs
    • UL1557 certified (file ref. 81734) = 2.5 kV
    • Snubberless™ device
    • ECOPACK®2 compliant (RoHS and HF compliance)

Recommended for you

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS12857
      40 A Snubberless™ Triac
      1.0
      213.78 KB
      PDF
      DS12857

      40 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

      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**
T4050-6PF
Active
TO-3PF Industrial Ecopack2

T4050-6PF

Package:

TO-3PF

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-3PF

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
T4050-6PF Available at 4 distributors

Distributor availability ofT4050-6PF

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 224 1 Order Now
FUTURE WORLDWIDE 10 30 Order Now
MOUSER WORLDWIDE 132 1 Order Now
Farnell Element14 EUROPE 102 1 Order Now

Distributor reported inventory date: 2020-08-10

Distributor Name

DIGIKEY

Stock

224

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

10

Min.Order

30

Region

WORLDWIDE Order Now

MOUSER

Stock

132

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

102

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-10

Buy now
Active
EAR99 NEC Tube TO-3PF -40 125 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):

600

Unit Price (US$):

-

Country of Origin:

SOUTH KOREA

T4050-6PF

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

Distributor availability ofT4050-6PF

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 224 1 Order Now
FUTURE WORLDWIDE 10 30 Order Now
MOUSER WORLDWIDE 132 1 Order Now
Farnell Element14 EUROPE 102 1 Order Now

Distributor reported inventory date: 2020-08-10

Distributor Name

DIGIKEY

Stock

224

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

10

Min.Order

30

Region

WORLDWIDE Order Now

MOUSER

Stock

132

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

102

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-10

ECCN (EU)

NEC

Packing Type

Tube

Package

TO-3PF

Operating Temperature (°C)

(min)

-40

(max)

125

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

Country of Origin

SOUTH KOREA

(*) 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