AC Power Switches feature integrated surge protection.June 17, 2009 -
With IEC 61000-4-5 certified integrated surge protection, 10 A ACST10 and 12 A ACST12 families of AC power switches suit applications in washing-machine motors, compressors for refrigerators/air-conditioning units, and industrial drives. Input of unit can be connected directly to appliance's electronic control unit. Available package options include through-hole TO-220AB and plastic insulated TO-220FPAB for ACST10 family, while ACST12 family comes in TO-220AB or surface-mount D2PAK package.
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Original Press release
STMicroelectronics
10 Maguire Road
Lexington, MA, 02421
USA
New Power AC Switches Featuring Built-in Surge Protection from STMicroelectronics Deliver Competitive Edge for Appliances
Integrated ESD protection meets IEC standards, leading to simplified power design for washing machines, refrigerators, air conditioners and industrial equipment
Geneva, June 4, 2009 - Two new families of AC power switches from STMicroelectronics (NYSE: STM), a leading supplier of power semiconductors, simplify the design of domestic appliances and industrial equipment by integrating surge protection that meets the international standard IEC 61000-4-5, which is usually implemented using external components.
The 10A ACST10 and 12A ACST12 families complete ST's range for applications from 2A to 12A. They can be used for protecting washing-machine motors, compressors for refrigerators or air-conditioning units, or in industrial drives. The devices replace conventional electromechanical relays or TRIAC-based power switches, which require additional external components to prevent damage caused by voltage surges in the AC supply or by energy stored in the load.
Several other external components can also be eliminated since the switch input can be connected directly to the appliance's electronic control unit, whereas a relay or TRIAC typically requires a separate input driver. In addition, designers must usually add components to prevent unpredictable turn-on or turn-off of the motor, but these, also, are not required when using the ACST10 or ACST12.
Package options include the industry-standard through-hole TO-220AB and plastic insulated TO-220FPAB packages for the ACST10 family, and TO-220AB or surface-mount D2PAK for the ACST12 family. The devices are in production now at prices from $0.51 for ACST10 devices and $0.61 for the ACST12 family, for orders over 10,000 units.
About STMicroelectronics
STMicroelectronics is a global leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications. An unrivalled combination of silicon and system expertise, manufacturing strength, Intellectual Property (IP) portfolio and strategic partners positions the Company at the forefront of System-on-Chip (SoC) technology and its products play a key role in enabling today's convergence markets. The Company's shares are traded on the New York Stock Exchange, on Euronext Paris and on the Milan Stock Exchange. In 2008, the Company's net revenues were $9.84 billion. Further information on ST can be found at www.st.com.
STMicroelectronics, Inc.
Lexington Corporate Center
10 Maguire Road
Bldg. 1, 3rd Floor
Lexington, MA 02421
(781) 861 2650
www.st.com
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