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  • The ACS120 belongs to the AC line switch family. This high performance switch circuit is able to control a load of up to 2 A.

    The ACS™ switch embeds a high voltage clamping structure to absorb the inductive turn off energy and a gate level shifter driver to separate the digital controller from the main switch. It is triggered with a negative gate current flowing out of the gate pin.

    Key Features

    • Blocking voltage: VDRM/ VRRM= +/- 700 V
    • Avalanche controlled: VCLtyp. = 1100 V
    • Nominal conducting current: IT(RMS)= 2 A
    • Gate triggering current: IGT< 10 mA
    • High noise immunity: static dV/dt > 500 V/μs

Recommended for you

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS3279
      Overvoltage protected AC switch (ACS™)
      4.0
      419.79 KB
      PDF
      DS3279

      Overvoltage protected AC switch (ACS™)

    • 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
      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
      AN533
      SCRs, TRIACs, and AC switches, thermal management precautions for handling and mounting
      3.6
      217.19 KB
      PDF
      AN1353
      ST6200C SOFTWARE DESCRIPTION FOR COOLING THERMOSTAT APPLICATION
      2.1
      130.76 KB
      PDF
      AN1172
      THE NEW ACS SERIES: SERIES A BREAKTHROUGH IN RUGGEDNESS & DRIVE FOR HOME APPLIANCES
      2.5
      282.31 KB
      PDF
      AN440
      Triac control with a microcontroller powered from a positive supply
      4.1
      1.12 MB
      PDF
      AN1379
      Z01 and ACS behavior compared under fast voltage transients
      5.2
      258.9 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

      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

      AN533

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

      AN1353

      ST6200C SOFTWARE DESCRIPTION FOR COOLING THERMOSTAT APPLICATION

      AN1172

      THE NEW ACS SERIES: SERIES A BREAKTHROUGH IN RUGGEDNESS & DRIVE FOR HOME APPLIANCES

      AN440

      Triac control with a microcontroller powered from a positive supply

      AN1379

      Z01 and ACS behavior compared under fast voltage transients

    • 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
      ACS series logic level gate AC switches PSpice model (.lib) and symbols (.olb) 5.0
      9.05 KB
      ZIP

      ACS series logic level gate AC switches PSpice model (.lib) and symbols (.olb)

Publications and Collaterals

    • Description Version Size Action
      ACS series - Overvoltage-protected AC switches 1.0
      1.32 MB
      PDF
      ST Thyristor Finder: SCRs and Triacs on Android and iOS 1.0
      854.07 KB
      PDF

      ACS 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**
ACS120-7SB
Active
DPAK Industrial Ecopack2
ACS120-7SB-TR
Active
DPAK Industrial Ecopack2
ACS120-7SFP
Active
TO-220FPAB Industrial Ecopack2
ACS120-7ST
Active
TO-220AB Industrial Ecopack2

ACS120-7SB

Package:

DPAK

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DPAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ACS120-7SB-TR

Package:

DPAK

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DPAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ACS120-7SFP

Package:

TO-220FPAB

Material Declaration**:

Marketing Status

Active

Package

TO-220FPAB

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ACS120-7ST

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) Country of Origin
Budgetary Price (US$)*/Qty
min
max
ACS120-7SFP Available at 1 distributors

Distributor availability ofACS120-7SFP

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 510 1 Order Now

Distributor reported inventory date: 2020-08-01

Distributor Name

DIGIKEY

Stock

510

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-08-01

Sample & Buy Buy now
Active
EAR99 NEC Tube TO-220FPAB - - CHINA
ACS120-7SB-TR Available at 5 distributors

Distributor availability ofACS120-7SB-TR

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 5745 5 Order Now
ARROW EUROPE 17500 0 Order Now
Newark Element14 AMERICA 5 0 Order Now
MOUSER WORLDWIDE 1291 1 Order Now
Farnell Element14 EUROPE 1637 1 Order Now

Distributor reported inventory date: 2020-08-02

Distributor Name

RS COMPONENTS

Stock

5745

Min.Order

5

Region

EUROPE Order Now

ARROW

Stock

17500

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

5

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1291

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1637

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-02

Buy now
Active
EAR99 NEC Tape And Reel DPAK - - CHINA
ACS120-7ST Available at 3 distributors

Distributor availability ofACS120-7ST

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1899 1 Order Now
MOUSER WORLDWIDE 1972 1 Order Now
Farnell Element14 EUROPE 596 1 Order Now

Distributor reported inventory date: 2020-08-02

Distributor Name

DIGIKEY

Stock

1899

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

1972

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

596

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-02

Buy now
Active
EAR99 NEC Tube TO-220AB - - CHINA
ACS120-7SB Available at 4 distributors

Distributor availability ofACS120-7SB

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 256 1 Order Now
Newark Element14 AMERICA 718 0 Order Now
MOUSER WORLDWIDE 1765 1 Order Now
Farnell Element14 EUROPE 2104 1 Order Now

Distributor reported inventory date: 2020-08-02

Distributor Name

DIGIKEY

Stock

256

Min.Order

1

Region

WORLDWIDE Order Now

Newark Element14

Stock

718

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1765

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2104

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-02

Buy now
Active
EAR99 NEC Tube DPAK - - CHINA

ACS120-7SFP

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

Distributor availability ofACS120-7SFP

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 510 1 Order Now

Distributor reported inventory date: 2020-08-01

Distributor Name

DIGIKEY

Stock

510

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-08-01

ECCN (EU)

NEC

Packing Type

Tube

Package

TO-220FPAB

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

Country of Origin

CHINA

ACS120-7SB-TR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

Distributor availability ofACS120-7SB-TR

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 5745 5 Order Now
ARROW EUROPE 17500 0 Order Now
Newark Element14 AMERICA 5 0 Order Now
MOUSER WORLDWIDE 1291 1 Order Now
Farnell Element14 EUROPE 1637 1 Order Now

Distributor reported inventory date: 2020-08-02

Distributor Name

RS COMPONENTS

Stock

5745

Min.Order

5

Region

EUROPE Order Now

ARROW

Stock

17500

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

5

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1291

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1637

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-02

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DPAK

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

Country of Origin

CHINA

ACS120-7ST

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

Distributor availability ofACS120-7ST

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1899 1 Order Now
MOUSER WORLDWIDE 1972 1 Order Now
Farnell Element14 EUROPE 596 1 Order Now

Distributor reported inventory date: 2020-08-02

Distributor Name

DIGIKEY

Stock

1899

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

1972

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

596

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-02

ECCN (EU)

NEC

Packing Type

Tube

Package

TO-220AB

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

Country of Origin

CHINA

ACS120-7SB

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

Distributor availability ofACS120-7SB

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 256 1 Order Now
Newark Element14 AMERICA 718 0 Order Now
MOUSER WORLDWIDE 1765 1 Order Now
Farnell Element14 EUROPE 2104 1 Order Now

Distributor reported inventory date: 2020-08-02

Distributor Name

DIGIKEY

Stock

256

Min.Order

1

Region

WORLDWIDE Order Now

Newark Element14

Stock

718

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1765

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2104

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-02

ECCN (EU)

NEC

Packing Type

Tube

Package

DPAK

Operating Temperature (°C)

(min)

-

(max)

-

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