Vishay Releases New 600V PFC High-Frequency Rectifier
Vishay Intertechnology, Inc. has launched a new 600V FRED Pt® Hyperfast tandem rectifier that reduces losses in high-efficiency continuous current mode (CCM) power factor correction (PFC) applications with its fast reverse recovery time, low forward voltage drop, and low package thermal resistance.
The new 8S2TH06I-M is optimized for use in desktop PCs, server and telecom power supplies, UPS systems, wide-screen plasma display and LCD power supplies, industrial power supplies, and solar inverters.
According to Vishay, a unique balance of conduction and switching performance improvements allows the 8S2TH06I-M to provide an average overall power-loss reduction of 22% in typical high-frequency PFC applications.
Delivering a reverse recovery time of 11ns, the 8S2TH06I-M combines its Hyperfast switching performance with a low forward voltage drop rating of 2.1V at 8A, allowing the device to work at higher frequencies to increase overall system efficiency. Its 2-pin TO-220 package enables the device to provide 8A dc at a 120°C case temperature while delivering insulation exceeding 2kV. The ceramic-insulated TO-220 package is designed for easy mounting together with non-insulated parts, yet with minimum effect on its benchmark thermal resistance of 2.3°C/W junction to case.
Reverse recovery charge for the 8S2TH06I-M is 7nC at 25°C and 35nC at 125°C, which represents a significant improvement in the trade-off between Qrr and forward voltage drop. The result is the ability to combine high-frequency operation with lower losses, allowing heat sinks and passive components to be downsized. Likewise, the 8S2TH06I-M’s operating junction temperature of 175°C allows for more robust and more cost effective designs, and represents a 15% improvement over competing devices, for which 150°C is the maximum rating.
Samples and production quantities of the 8S2TH06I-M Hyperfast tandem rectifier are available now, with lead times of six to eight weeks for larger orders. Pricing for U.S. delivery in 100,000-piece quantities starts at $0.65.
