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Vishay expands MOSFET line-up with 11 500V devices

26 Jan 2015

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Vishay Intertechnology Inc. has released additional 11 devices to its 500V series of high-voltage MOSFETs optimised for operation in switch mode power supplies (SMPS) to 500W. According to the company, the Vishay Siliconix MOSFETs aim to help customers achieve higher performance/efficiency standards such as the stringent 80 PLUS efficiency standards needed for certain high-performance consumer products, lighting applications and ATX/silver box PC SMPS.

The devices claim to feature the same benefits of extremely low conduction and switching losses as the company's E series 600V and 650V devices.

500V power MOSFETs

Built on second-generation super junction technology, the 500V MOSFETs provide a high-efficiency complement to Vishay's existing 500V D series components based on standard planar technology. The 12-20A devices feature low on-resistance from 190-380mΩ and ultra-low gate charge of 22-45nC. This combination results in a very favourable figure of merit (FOM) for power conversion applications, stated the company.

The devices' low on-resistance also helps improve power density, while their faster switching speeds increase efficiency in typical hard-switched topologies such as power factor correction (PFC), two-switch forward converters and flyback converters.

The RoHS-compliant devices are designed to withstand high energy pulse in the avalanche and commutation modes with guaranteed limits through 100 per cent UIS testing.

Device specs

Samples and production quantities of the 500V power MOSFETs are available with lead times of 16-17 weeks.

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