FEATURES

• Two fully independent diodes

• Fully insulated package

• Ultrafast, soft reverse recovery, with high

operation junction temperature (TJ max. = 175 °C)

• Low forward voltage drop

• Optimized for power conversion: welding and industrial

SMPS applications

• Easy to use and parallel

• Industry standard outline

• UL approved file E78996

• Designed and qualified for industrial level

• Material categorization: for definitions of compliance

please see www.vishay.com/doc?99912

DESCRIPTION / APPLICATIONS

The VS-UFB280FA40 insulated modules integrate two state

of the art ultrafast recovery rectifiers in the compact,

industry standard SOT-227 package. The diodes structure,

and its life time control, provide an ultrasoft recovery

current shape, together with the best overall performance,

ruggedness and reliability characteristics.

These devices are thus intended for high frequency

applications in which the switching energy is designed not

to be predominant portion of the total energy, such as in the

output rectification stage of welding machines, SMPS,

DC/DC converters. Their extremely optimized stored

charge and low recovery current reduce both over

dissipation in the switching elements (and snubbers) and

EMI/RFI.