Overvoltage protected AC switch

The ACS110 belongs to the AC line switch family built around the ASD concept. This high performance switch circuit is able to control a load up to 1 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 = +/-700V
  • Nominal conducting current : IT(RMS) = 1A
  • Avalanche controlled : VCL typ = 1100 V
  • High noise immunity : static dV/dt >500V/µs
  • Switch integrated driver


Publications and Collaterals

Selection Guides
Description Version Size
Thyristors, Triacs, AC switches and A.S.D™ selection guide 2.0 1 MB

HW Model & CAD Libraries

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

Technical Documentation

Product Specifications
Description Version Size
DS3278 DS3278: AC LINE SWITCH 2.1 121 KB
Technical Notes & Articles
Description Version Size
TN1173 TN1173: Packing information for IPAD™, protection, rectifiers, thyristors and AC Switches 5.0 1 MB
User Manuals
Description Version Size
UM1542 UM1542: Cold thermostat kit based on AC switches and the STM8S003F3 1.0 2 MB

Tools and Software

Development Tools
Evaluation Tools
Software Development 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
ACS110-7SN SOT-223 Tape And Reel Active 0.356 500 NEC EAR99 CHINA MORE INFO Get Sample Add to cart DISTRIBUTOR AVAILABILITY

(*) 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**
ACS110-7SN ActiveSOT-223IndustrialEcopack2

(**) 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.