IR's 300V ultrafast diodes run up to 4 C cooler than the best-performing 400V ultrafast diode resulting in increased reliability which is critical to power supplies used to power telecom and datacom systems. More efficiency can reduce heat sink size, or increase power density within the same footprint in a circuit upgrade.
More efficiency also translates in lower temperature and increased reliability.
IR's 300V ultrafast diodes complement the wide selection of 200V and 400V device offerings for traditional output rectification designs. Generally, two to four diodes are used in the output rectification circuit in a single power supply for the datacom and telecom market. In 48V input power converters, the required breakdown voltage in the output rectification stage is in the 200V to 300V range. International Rectifier's new FREDs provide a sufficient safety margin for 48V output circuits, yet eliminates the snubber circuit required by 200V diodes. The new 300V diodes optimize the balance between forward voltage drop and reverse recovery time.