The UR4KB80 is a rectifier diode manufactured by Taiwan Semiconductor. It is designed for use in various power rectification applications, converting AC voltage to DC voltage with high efficiency and reliability.

Applications

• Power supplies: Rectifying AC voltage to DC voltage in linear and switching power supplies.
• Adapters: Converting AC voltage to DC voltage in wall adapters and chargers.
• Motor control circuits: Providing a rectified DC voltage for motor control applications.
• Battery chargers: Rectifying AC voltage for charging batteries in various devices.
• Lighting systems: Rectifying AC voltage for LED lighting and other lighting systems.

Features

• High Surge Current Capability: Withstands high surge currents, protecting the device from overcurrent events.
• Low Forward Voltage Drop: Minimizes power loss and heat dissipation.
• High Reliability: Offers long-term stability and reliability.
• Compact Package: Available in various compact package options for space-saving designs.
• High-Temperature Operation: Operates reliably at high temperatures.
• RoHS Compliant: Complies with RoHS standards, reducing the use of hazardous substances.

Benefits

• Efficient Rectification: Low forward voltage drop minimizes power loss and improves overall efficiency.
• Overcurrent Protection: High surge current capability provides protection against overcurrent events.
• Long-Term Reliability: Ensures long-term stable performance in various applications.
• Space-Saving Design: Compact package options allow for integration in space-constrained applications.

Technical Specifications: The UR4KB80 features a reverse voltage of 800V and a forward current of 4A. It operates over a wide temperature range and is available in various package options such as DO-201AD. The forward voltage drop is typically around 1V at the rated forward current. The surge current capability can reach up to 150A for a short duration.