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Vishay Releases New 600-V PFC High-Frequency Rectifier With 11-ns Reverse Recovery Time and Low Forward Voltage Drop of 2.1 V
High-Efficiency Device Offers Operating Junction Temperature of + 175 °C in 2-Pin Insulated TO-220 Package
MALVERN, PENNSYLVANIA. — September 2, 2009 — Vishay Intertechnology, Inc. (NYSE: VSH) today launched a new 600-V FRED Pt® Hyperfast tandem rectifier that reduces losses in high-efficiency continuous current mode (CCM) power factor correction (PFC) applications with its extremely 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.
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 11 ns, the 8S2TH06I-M combines its Hyperfast switching performance with a low forward voltage drop rating of 2.1 V at 8 A, allowing the device to work at higher frequencies to increase overall system efficiency. Its 2-pin TO-220 package enables the device to provide 8 A DC at a 120 °C case temperature while delivering insulation exceeding 2 kV. 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 7 nC at 25 °C and 35 nC at 125 °C, which represents a significant improvement in the tradeoff 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.
Device Specification Table:
|@ TC||120 °C|
|VF @ 125 °C (Typ.)||2.1 at 8 A|
|Qrr @ 125 °C at rated IF − 200 A/us at 390 V||35 nC|
|Reverse Leakage @ 25 °C||<1 μA|
|Reverse Leakage Typ. @ 125 °C||7 μA|
Samples and production quantities of the8S2TH06I-M Hyperfast tandem rectifier are available now, with lead times of six to eight weeks for larger orders.
Vishay Intertechnology, Inc., a Fortune 1000 Company listed on the NYSE (VSH), is one of the world's largest manufacturers
of discrete semiconductors (diodes, MOSFETs, and infrared optoelectronics) and passive electronic components (resistors, inductors,
and capacitors). These components are used in virtually all types of electronic devices and equipment, in the industrial,
computing, automotive, consumer, telecommunications, military, aerospace, power supplies, and medical markets. Vishay’s product
innovations, successful acquisition strategy, and "one-stop shop" service have made it a global industry leader. Vishay can
be found on the Internet at www.vishay.com.