Vishay Semiconductor/Diodes Division Distributor

VS-UF Series Ultra-fast Diodes Modules


Ultra-fast Diodes modules in the SOT-227 package offer a wide range of current ratings and lower thermal resistance


Vishay Semiconductor/Diodes Division's Ultrafast Diodes ModulesVishay Semiconductor/Diodes Division's VS-UF 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 ultra-soft recovery current shape, together with the best overall performance, ruggedness and reliability characteristics. Based on Vishay Fred Pt® and HEXFRED® ultra-fast diodes, these modules provide ultra-soft recovery characteristics with higher thermal efficiency versus previous generations.

These devices provide ideal solutions for high frequency applications. This isparticularly true in applications where the switching energy is not to be the predominant portion of the total energy. This includes areas such as in the output rectification stage of welding machines, SMPS, and 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.

Features Applications
  • Current ratings: 80 A to 280 A
  • Voltage: up to 1200 V
  • Low thermal resistance
  • Low reverse recovery times
  • Electrically-isolated baseplate
  • Low forward voltage drop
  • Output rectification on welding machines
  • Switch mode power supplies (SMPS)
  • DC/DC converters
  • Motor controls
  • Inverters

Digi-Key P/N Manufacturer P/N Description
VS-UFB130FA20-ND VS-UFB130FA20 DIODE FAST REC 200V 65A SOT227 Datasheet
VS-UFB130FA40-ND VS-UFB130FA40 MODULE 400V 65A SOT-227 FRED Datasheet
VS-UFB280FA20-ND VS-UFB280FA20 MODULE 200V 280A SOT-227 FRED Datasheet
VS-UFB280FA40-ND VS-UFB280FA40 DIODE DUAL 400V 170A SOT227 Datasheet
VS-UFB230FA60-ND VS-UFB230FA60 MODULE 600V 141A SOT-227 FRED Datasheet
VS-UFL230FA60-ND VS-UFL230FA60 DIODE FAST REC 600V 160A SOT227 Datasheet