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  • The ACST310-8FP belongs to the ACS™ / ACST power switch family built with A.S.D.®(application specific discrete) technology. This high performance device is suited to home appliances or industrial systems and drives loads up to 3 A.

    This ACST310-8FP switch embeds a Triac structure and a high voltage clamping device able to absorb the inductive turn-off energy and withstand line transients such as those described in the IEC 61000-4-5 standard.The component needs a low gate current to be activated (IGT max. 10 mA) and still shows a high electrical noise immunity complying with IEC standards such as IEC 61000-4-4 (fast transient burst test). It provides UL certified insulation rated at 2000 VRMS(file ref: E81734).

    Key Features

    • AC switch with self over voltage protection
    • Microcontroller direct driven (low gate current max. 10 mA)
    • Three quadrants (Q1, Q2 and Q3)
    • UL94-V0 qualified resin (flammability)
    • Complies with UL standards UL1557
      • Insulated voltage: 2000 VRMS
    • ECOPACK®2 compliant component
    • Benefits
      • Enables equipment to meet IEC61000-4-5
      • High immunity against fast transients described in IEC61000-4-4 standard
      • Needs no external overvoltage protection
      • High off-state reliability power device
      • Interfaces directly with the microcontroller
      • Reduces component count

Recommended for you

Related Applications

Home and Professional Appliances

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS10911
      Overvoltage protected AC switch
      2.0
      305.17 KB
      PDF
      DS10911

      Overvoltage protected AC switch

    • 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
      AN441
      Inductive load control with AC switches
      3.2
      712.21 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
      AN3168
      Non-insulated SCR / Triac control circuits
      1.2
      315.8 KB
      PDF
      AN2703
      Parameter list for SCRs, TRIACs, AC switches, and DIACS
      2.6
      98.99 KB
      PDF
      AN533
      SCRs, TRIACs, and AC switches, thermal management precautions for handling and mounting
      3.6
      217.19 KB
      PDF
      AN2991
      Single-phase induction motor drive for refrigerator compressor application (formerly AN1354)
      2.2
      256.33 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

      AN441

      Inductive load control with AC switches

      AN4564

      Is a positive power supply mandatory for my application, or could a negative output work also?

      AN3168

      Non-insulated SCR / Triac control circuits

      AN2703

      Parameter list for SCRs, TRIACs, AC switches, and DIACS

      AN533

      SCRs, TRIACs, and AC switches, thermal management precautions for handling and mounting

      AN2991

      Single-phase induction motor drive for refrigerator compressor application (formerly AN1354)

      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
      ACST series overvoltage protected AC switches PSpice model (.lib) and symbols (.olb) 5.0
      13.63 KB
      ZIP

      ACST series overvoltage protected AC switches PSpice model (.lib) and symbols (.olb)

Publications and Collaterals

    • Description Version Size Action
      ACST series : overvoltage protected AC switches 2.0
      1.35 MB
      PDF
      ST Thyristor Finder: SCRs and Triacs on Android and iOS 1.0
      854.07 KB
      PDF

      ACST series : overvoltage protected AC switches

      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**
ACST310-8FP
Active
TO-220FPAB Industrial Ecopack2

ACST310-8FP

Package:

TO-220FPAB

Material Declaration**:

Marketing Status

Active

Package

TO-220FPAB

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
Triggering gate current max (mA) (I, II, III)
Rising Ratio Of Off Voltage (V/µs) (min) (@ TJ(Max) )
Rate of decrease of commutating on-state current (A/ms) (min) (@ TJ(Max) )
Package
Packing Type
ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
ACST310-8FP Available at 4 distributors

Distributor availability ofACST310-8FP

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2822 1 Order Now
RS COMPONENTS EUROPE 650 1 Order Now
MOUSER WORLDWIDE 2049 1 Order Now
Farnell Element14 EUROPE 48 1 Order Now

Distributor reported inventory date: 2020-06-25

Distributor Name

DIGIKEY

Stock

2822

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

650

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

2049

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

48

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-06-25

Get sample
Active
10, 10, 10 1000 5 TO-220FPAB Tube EAR99 CHINA

ACST310-8FP

Marketing Status

Active

Triggering gate current max (mA) (I, II, III)

10, 10, 10

Budgetary Price (US$)*/Qty

Distributor availability ofACST310-8FP

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2822 1 Order Now
RS COMPONENTS EUROPE 650 1 Order Now
MOUSER WORLDWIDE 2049 1 Order Now
Farnell Element14 EUROPE 48 1 Order Now

Distributor reported inventory date: 2020-06-25

Distributor Name

DIGIKEY

Stock

2822

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

650

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

2049

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

48

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-06-25

Rising Ratio Of Off Voltage (V/µs) (min) (@ TJ(Max) )

1000

Rate of decrease of commutating on-state current (A/ms) (min) (@ TJ(Max) )

5

Package

TO-220FPAB

Packing Type

Tube

Budgetary Price (US$)* / Qty

ECCN (US)

EAR99

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