STMicroelectronics Unveils Ultra Low-Loss Rectifier Diodes for More Efficient and Greener Power Supplies

First diode in new family of Schottky rectifiers with ultra-low forward voltage drop boosts power-supply efficiency to help meet eco-design initiatives

GENEVA, Feb. 23 — (PRNewswire) — STMicroelectronics (NYSE: STM), a leading supplier of power semiconductors, has introduced a new family of high-efficiency power rectifiers that will help product manufacturers achieve energy-efficiency approvals, such as 80 PLUS®. Saving energy has become a major selling point for power-supply and computer manufacturers. The 80 PLUS incentive program proposes to increase power supply efficiency, which helps reduce global carbon emissions by reducing wasted energy.

The new STPS50U100C is a rectifier diode and can be used in the output of power supplies for adapters, desktop PCs, servers, TV and video products, communication equipment, and many other electrical appliances. It is the first member of a new family of ultra-low forward voltage (ULVF™) Schottky rectifier diodes from ST, which will provide a range of diode properties to fulfill various applications. The forward voltage drop is the main source of power losses in power Schottky diodes used for secondary rectification, therefore minimizing this voltage drop is a key innovation driver.

The new ULVF family uses enhanced technology providing a significant increase of the overall efficiency. This new family will handle higher power density providing a high safety margin to address a large scale of high-output power supplies, and will be available in compact, industry-standard packages. Package options will include TO-220 and I2PAK, with other styles planned to be made available in the future.

Key features of the STPS50U100CT:

  • Typical forward-voltage drop (VF): 0.64V at 25A (0.38V @ 5A)
  • Maximum leakage current of 200 micro-A
  • Maximum average forward current: 50A
  • Repetitive peak reverse voltage: 100V
  • Surge non-repetitive forward current: 250A
  • Maximum junction temperature: 150 degrees C
  • ECOPACK®2-compliant packages meeting RoHS Regulations

The STPS50U100C is in full production now, in TO-220 (STPS50U100CT) and I2PAK (STPS50U100CR) package options, respectively, priced from $1.50 in quantities of 1000 pieces.

About STMicroelectronics

STMicroelectronics is a global leader serving customers across the spectrum of electronics applications with innovative semiconductor solutions. ST aims to be the undisputed leader in multimedia convergence and power applications leveraging its vast array of technologies, design expertise and combination of intellectual property portfolio, strategic partnerships and manufacturing strength. In 2009, the Company's net revenues were $8.51 billion. Further information on ST can be found at www.st.com

ULVF is a trademark of STMicroelectronics. All other trademarks or registered trademarks are the property of their respective owners.

SOURCE STMicroelectronics

Contact:
STMicroelectronics
Michael Markowitz of STMicroelectronics
Phone: +1-212-821-8959
Email Contact
Web: http://www.st.com




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