STMicroelectronics Reveals World's First and Only Specified Automotive Surge Protection Devices

GENEVA -- (Marketwire) -- Jul 17, 2012 -- STMicroelectronics (NYSE: STM), a global electronics leader serving customers across the spectrum of electronics applications, is helping vehicle electronics manufacturers deliver safer, more reliable systems by offering the only surge protection devices certified to the automotive industry's preferred specifications. By saving the time needed for independent certification, these transient voltage suppressors (TVS) enable new products to reach the market more quickly and at more competitive prices.

Surge protection prevents unwanted voltage pulses in the vehicle wiring from damaging sensitive subsystems such as safety systems, control modules and infotainment equipment. Pulses can be caused by events such as electrostatic discharges (ESD) from occupants, turn-on/off of subsystems such as motor drives or climate control, or load dumps when a significant load such as the battery is suddenly disconnected. Historically, designers have chosen from devices certified to industrial standards that specify pulse shapes unrepresentative of those expected in road vehicles.

ST's SM4TY-SM30TY series of Transil miniature surge-protection devices - are certified to pulse specifications used by the automotive industry. They are also qualified to the AEC-Q101 automotive reliability test standard for discrete semiconductors, and have a full Automotive-Grade Approval Certificate (AGAC). This saves designers researching for equivalence between industrial and automotive standards, and then re-certifying each new subsystem design independently. Hence new innovations are able to reach the market quickly and cost efficiently.

The Transil protection devices are housed in miniature surface-mount power packages occupying from 12.8mm(2) to 46mm(2) of pc-board space, capable of handling from 400W to 3000W of power contained in pulses and ESD transients present on the vehicle wiring.

Major features of ST's automotive Transil protection devices:

  • Tested and certified using ISO 7637 specifications for electrical transients
  • Tested and certified using ISO 10605 specifications for ESD strike
  • AEC-Q101 certified
  • All devices available in unidirectional or bidirectional configuration
  • SM4TY: SMA package, 2.55 x 5.05 mm, 400 W
  • SMA6TY: SMA package, 2.55 x 5.05 mm, 600 W
  • SM6TY: SMB package, 3.60 x 5.35 mm, 600 W
  • SM15TY: SMC package, 5.90 x 7.95 mm, 1500 W
  • SM30TY: SMC package, 5.90 x 7.95 mm, 3000 W

ST automotive-(AGAC) Transil protection devices are in mass production now, in SMA, SMB or SMC surface-mount packages, at prices ranging from $0.118 to $0.528 for unidirectional devices or $0.129 to $0.558 for bidirectional devices. Alternative pricing options for large quantities may be available on request.

About STMicroelectronics
ST is a global leader in the semiconductor market serving customers across the spectrum of sense and power technologies and multimedia convergence applications. From energy management and savings to trust and data security, from healthcare and wellness to smart consumer devices, in the home, car and office, at work and at play, ST is found everywhere microelectronics make a positive and innovative contribution to people's life. By getting more from technology to get more from life, ST stands for life.augmented.

In 2011, the Company's net revenues were $9.73 billion. Further information on ST can be found at www.st.com.

Industry-First Automotive Surge Protection Devices from ST: http://hugin.info/152740/R/1627275/520790.pdf

Industry-First Automotive Surge Protection Devices from ST_IMAGE: http://hugin.info/152740/R/1627275/520791.jpg

For Press Information Contact:
STMicroelectronics
Michael Markowitz
Director Technical Media Relations
+1 781 591 0354

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