Overvoltage protected AC switch

The ACS108 belongs to the AC switch range (built with A. S. D.®technology). This high performance switch can control a load of up to 0.8 A. The ACS108 switch includes an overvoltage crowbar 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

  • Enables equipment to meet IEC 61000-4-5 surge with overvoltage crowbar technology
  • High noise immunity against static dV/dt and IEC 61000-4-4 burst
  • Needs no external protection snubber or varistor
  • Reduces component count by up to 80% and Interfaces directly with the micro-controller
  • Common package tab connection supports connection of several alternating current switches on the same cooling pad
  • VCL gives headroom before clamping then crowbar action

Resources

Technical Documentation

Product Specifications
Description Version Size
DS1641 DS1641: Overvoltage protected AC switch (ACS™) 5.0 287 KB
Application Notes
Description Version Size
AN2986 AN2986: AC switch triggering with 3.3 V power supply 1.3 337 KB
AN4993 AN4993: How to implement a SCR or a Triac in a hybride relay application 1.1 991 KB
AN4564 AN4564: Is a positive power supply mandatory for my application, or could a negative output work also? 1.0 384 KB
AN2703 AN2703: Parameter list for SCRs, TRIACs, AC switches, and DIACS 2.5 99 KB
AN1296 AN1296: Ring wave tests with ACS108 driving valves and pumps 3.1 87 KB
AN533 AN533: SCRs, TRIACs, and AC switches, thermal management precautions for handling and mounting 3.4 216 KB
AN1353 AN1353: ST6200C SOFTWARE DESCRIPTION FOR COOLING THERMOSTAT APPLICATION 2.1 130 KB
AN1172 AN1172: THE NEW ACS SERIES: SERIES A BREAKTHROUGH IN RUGGEDNESS & DRIVE FOR HOME APPLIANCES 2.3 281 KB
AN1379 AN1379: Z01 and ACS behavior compared under fast voltage transients 5.2 258 KB
Technical Notes & Articles
Description Version Size
TN1173 TN1173: Packing information for IPAD™, protection, rectifiers, thyristors and AC Switches 5.0 1 MB

HW Model, CAD Libraries & SVD

HW Model, CAD Libraries & SVD
Description Version Size
ACS series logic level gate AC switches PSpice model (.lib) and symbols (.olb) 4.0 12 KB

Publications and Collaterals

Flyers
Description Version Size
ACS series - Overvoltage-protected AC switches 1.0 1 MB
ST Thyristor Finder: SCRs and Triacs on Android and iOS 1.0 854 KB
Selection Guides
Description Version Size
Thyristors, Triacs, AC switches and A.S.D™ selection guide 2.0 1 MB

Tools and Software

Development Tools
Software Development Tools
Evaluation Tools
Solution Evaluation Tools
Support & Community


Sample & Buy

Part Number Package Packing Type Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
ACS108-6SA TO-92 Poly Bag Active 0.161 500 NEC EAR99 CHINA MORE INFO DISTRIBUTOR AVAILABILITY
ACS108-6SN-TR SOT-223 Tape And Reel Active 0.168 500 NEC EAR99 CHINA MORE INFO Get Sample Add to cart DISTRIBUTOR AVAILABILITY
ACS108-6SA-TR TO-92 Tape And Reel Active 0.161 500 NEC EAR99 CHINA MORE INFO Get Sample Add to cart DISTRIBUTOR AVAILABILITY
ACS108-8SA-TR TO-92 Tape And Reel Active 0.161 500 NEC EAR99 CHINA MORE INFO DISTRIBUTOR AVAILABILITY
ACS108-6SA-AP TO-92 Tape And Reel Active 0.161 500 NEC EAR99 CHINA MORE INFO DISTRIBUTOR AVAILABILITY
ACS108-8SA TO-92 Poly Bag Active 0.161 500 NEC EAR99 CHINA MORE INFO DISTRIBUTOR AVAILABILITY
ACS108-8SA-AP TO-92 Tape And Reel Active 0.161 500 NEC EAR99 CHINA MORE INFO DISTRIBUTOR AVAILABILITY
ACS108-8SN-TR SOT-223 Tape And Reel Active 0.168 500 NEC EAR99 CHINA MORE INFO Get Sample Add to cart DISTRIBUTOR AVAILABILITY
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(*) 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

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ACS108-6SA ActiveTO-92IndustrialEcopack2
ACS108-6SN-TR ActiveSOT-223IndustrialEcopack2 0 0
ACS108-6SA-TR ActiveTO-92IndustrialEcopack2
ACS108-8SA-TR ActiveTO-92IndustrialEcopack2 0 0
ACS108-6SA-AP ActiveTO-92IndustrialEcopack2
ACS108-8SA ActiveTO-92IndustrialEcopack2 0 0
ACS108-8SA-AP ActiveTO-92IndustrialEcopack2 0 0
ACS108-8SN-TR ActiveSOT-223IndustrialEcopack2 0 0
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(**) 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.

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