Ultra-Fast Recovery Performance Cuts Losses in 8A Diodes

Ultra-fast forward- and reverse-recovery performance fromtheVishay UH8JT and UHF8JT high-voltage diodes enhances efficiency in a wide range of power-switching and rectification circuits.

The diodes are rated for 8A forward current. By achieving reverse-recovery time of 25ns and forward-recovery time of 150ns, combined with typical forward voltage drop of 1.47V at full rated current, theyminimise losses in both conduction and switchingmodes. As eco-design standards such as the European EUP Directive evolve to specifyminimumlevels of energy efficiency for electronic products, the UH8JT and UHF8JT help engineers tomeet these targets.

Combining high efficiency and high-current capability, as well as 600V maximumreverse voltage, they will be used tominimise energy losses in rectifier and freewheeling circuits as well as in mandatory features such as power-factor correction.

The reduction in energy loss also results in lower heat dissipation, which will simplify thermal design to enable lower-cost,more compact and lightweight products such as power adapters, computing devices, and telecomand networking equipment.

The UH8JT is delivered in the standard TO-220 package with cathode connected to the tab. The UHF8JT in the ITO-220 package has the same mechanical outline and features an insulated tab for direct attachment to any heatsink.

 

FEATURES Soft recovery characteristic 80A peak forward-surge current Operating temperature range: -55°C to 175°C 1500V isolation voltage (ITO-220 package)

APPLICATIONS High output-voltage SMPS Continuous Conduction Mode Power - Factor Correction (CCM PFC) Secondary DC/DC rectification Freewheeling-diode circuits

 

 

Vishay / UH8JT and UHF8JT