Vishay introduces two ultrafast soft recovery diode modules in the new TO-244 Gen III package

In the latest TO-244 Gen III package, Vishay Intertechnology has unveiled two novel FRED Pt® 500 A Ultrafast soft recovery diode modules. The Vishay Semiconductors VS-VSUD505CW60 and VS-VSUD510CW60 are specifically engineered to minimize losses and electromagnetic interference (EMI) / radio frequency interference (RFI) in high frequency power conditioning systems, providing superior reliability compared to previous-generation solutions.

The diode modules announced today, specifically the robust TO-244 package, may last up to 46,000 IOL cycles under specific conditions, providing a longer lifespan compared to previous-generation devices. Furthermore, the package that is widely accepted in the market is compatible with other solutions in the TO-244, allowing for a seamless replacement of current designs.

The VS-VSUD505CW60 and VS-VSUD510CW60 are well-suited for various applications, including high frequency welding, high current converters, ballast water management systems (BWMS) in railway equipment, cranes, and ships, uninterruptible power supplies (UPS), and other scenarios where switching losses contribute significantly to the overall losses. The softness of their recovery in certain applications obviates the necessity for a snubber, hence diminishing the number of components and decreasing expenses.

The diode modules are available in a standard cathode layout and offer a low forward voltage drop of up to 0.82 V, a thermal resistance of 0.16 °C/W from junction to case, and an operating temperature range of up to +175 °C.

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Maurizio Di Paolo Emilio holds a Ph. D. in Physics and is a Telecommunications Engineer. He has worked on various international projects in the field of gravitational waves research, designing a thermal compensation system (TCS) and data acquisition and control systems, and on others about x-ray microbeams in collaboration with Columbia University, high voltage systems and space technologies for communications and motor control with ESA/INFN. TCS has been applied to the Virgo and LIGO experiments, which detected gravitational waves for the first time and earned the Nobel Prize in 2017. Since 2007, he has been a reviewer for scientific publications for academics such as Microelectronics Journal and IEEE journals. Moreover, he has collaborated with different electronic industry companies and several Italian and English blogs and magazines, such as Electronics World, Elektor, Mouser, Automazione Industriale, Electronic Design, All About Circuits, Fare Elettronica, Elettronica Oggi, and PCB Magazine, as a technical writer/editor, specializing in several topics of electronics and technology. From 2015 to 2018, he was the editor-in-chief of Firmware and Elettronica Open Source, which are technical blogs and magazines for the electronics industry. He participated in many conferences as a speaker of keynotes for different topics such as x-ray, space technologies, and power supplies. Maurizio enjoys writing and telling stories about Power Electronics, Wide Bandgap Semiconductors, Automotive, IoT, Embedded, Energy, and Quantum Computing. Maurizio has been an AspenCore content editor since 2019. He is currently editor-in-chief of Power Electronics News and EEWeb and a correspondent for EE Times. He is the host of PowerUP, a podcast about power electronics, and the promoter and organizer of the PowerUP Virtual Conference, a summit where each year great speakers talk about the power electronics design trends. Moreover, he has contributed to a number of technical and scientific articles as well as a couple of Springer books on energy harvesting and data acquisition and control systems.