The UF3D is a fast recovery rectifier manufactured by Vishay. It's designed for applications requiring efficient rectification and fast switching speeds.

Applications

• Switching Mode Power Supplies (SMPS)
• Freewheeling diode in converters
• Power inverters
• DC-DC converters
• Reverse polarity protection

Features

• Fast recovery time
• Low forward voltage drop
• High surge current capability
• High reliability
• RoHS compliant

Benefits

• Improved efficiency in switching applications due to fast recovery
• Reduced power dissipation due to low forward voltage drop
• Increased system robustness due to high surge current capability
• High reliability ensures long operational life

Additional Details

The UF3D is typically available in a DO-201AD package. The key electrical characteristics include a repetitive peak reverse voltage (VRRM) of 200V, a maximum average forward rectified current (IF(AV)) of 3.0A, and a typical forward voltage drop (VF) of around 0.95V. The fast recovery time (trr) is a critical parameter, usually in the range of tens of nanoseconds, enabling efficient operation in high-frequency circuits. The device is designed to handle significant surge currents, enhancing its reliability in demanding applications. Its low forward voltage drop contributes to reduced power losses and improved overall efficiency.

The UF3D is a commonly used component in various power electronics applications where both speed and efficiency are important. The fast recovery characteristic minimizes reverse recovery losses, making it suitable for high-frequency switching circuits. The robust design and high surge current capability contribute to its reliability in harsh operating environments. Its RoHS compliance ensures that it meets environmental regulations.