Thermal Package Unlocks Rectifier Performance Gains

Featuring a thermally-enhanced package, Vishay PowerBridge™ rectifiers in current ratings from 10A to 25A have smaller outline and reduced heatsink requirements compared to standard devices.

The BU10xx, BU12xx, BU15xx, BU20xx and BU25xx series use the 22mm x 18.5mm x 4mm BU package, which has low thermal resistance from junction to case. Together with the integrated, electrically-isolated metallic heat spreader, this package enhances cooling of the die to allow continuous operation at high ambient temperatures. At the same time, the lead pitch and pin layout match the conventional GBU package, thereby allowing a wide range of bridge-rectifier voltage and current ratings to share the same PCB layout.

In total there are five current ratings, with 12A, 15A and 20A versions also available. Devices in all current ratings can be specified for 600V, 800V or 1000V maximum reverse voltage, to satisfy diverse requirements for applied voltage, desired safety margin, and cost. These devices allow engineers to optimise cost, size and performance in rectifier-bridge circuits for high-voltage power supplies, power inverters and primary rectifiers.

 

FEATURES High current and voltage ratings Low forward voltage 5µA leakage current 150°C maximum junction temperature

APPLICATIONS Primary rectification in telecom power supplies Appliance and HVAC power inverters Induction heaters, domestic appliances and white goods

 

 

 

Vishay / BU10-BU25