New Industry Products

Diodes Inc. Introduces New Ultra-Low V(F)  Rectifiers for Switch Mode Power Supplies

May 09, 2007 by Jeff Shepard

Diodes Inc. launched a family of Ultra-Low V(F) SBR® power. Specifically targeting the PC power supply market’s challenge to meet the demanding 80 PLUS® and Energy Star 4.0 efficiency requirements, the new family of SBR® power rectifiers is claimed to offer industry-leading Ultra-Low V(F) and safe operating area that results in meaningful efficiency increases compared to existing industry standard parts.

The Ultra-Low V(F) SBR® product family is said to provide up to 85% higher reverse avalanche energy rating which allows for greater optimization and higher reliability in applications such as OR-ing and secondary rectification in ac-dc and dc-dc power supplies in end-user applications such as PC power supplies, servers, set-top boxes, telecom exchange, and medical power supplies.

"With the vast adoption of new efficiency requirements like the 80 PLUS® and Energy Star 4.0, the new Ultra-Low V(F) SBRs® are targeted to meet the growing demand for more power savings to qualify for the new efficiency standards," remarked Mark King, Senior Vice President, Sales and Marketing at Diodes Inc. "The Ultra-low V(F) SBR® devices like the SBR30U30CT have already received strong customer acceptance, including one in an 80 PLUS® power supply design for a major account."

The SBR30U30CT SBR® device is primarily targeted for secondary rectification for 3.3 and 5V output voltages for SMPS power supplies. With 85% higher reverse avalanche rating than its competitors, designers can use this inherent advantage from the SBR® technology to gain higher overall efficiency by using a 30V device to replace many of the traditional 45V Schottky devices that were commonly used in previously designed SMPS. This combination is said to give designers both performance and cost advantages in new high-efficiency power supplies.

"The SBR® technology, with its distinct advantages, allows us to enter into new high-volume markets, as it creates both performance- and market-driven opportunities," remarked Dr. Keh-Shew Lu, President and CEO of Diodes Inc. "With the release of the new Ultra-Low V(F) SBR® product family, we have aligned our technology development strategy with the increasing demand for more energy efficient products."