AU02

Overview

The AU02 is a fast recovery diode manufactured by Sanken Electric, rated for a repetitive peak reverse voltage of 400 V and an average forward current of 0.8 A. It achieves a maximum reverse recovery time (trr) of 400 ns through optimized lifetime control. The device features a low forward voltage drop of 1.3 V at 0.8 A and operates within a junction temperature range of -40 to 150 °C. It utilizes bare leads that are lead-free and RoHS compliant, housed in an axial package with dimensions of φ2.4 mm diameter and 2.9 mm length.

Feature Summary

• Optimized lifetime control enables a fast reverse recovery time of 400 ns.
• Lead-free bare leads ensure compliance with RoHS directives.
• Flammability rating meets UL94V-0 standards.

Applications

• Secondary-side rectifier diodes in flyback converters
• Secondary-side rectifier diodes in LLC converters
• Freewheel diodes in offline buck converters
• Freewheel diodes in offline buck-boost converters

Procurement Notes

Verify the specific revision status of the datasheet before implementation, as product information is subject to change without notice due to improvements. Confirm suitability for applications requiring high reliability, such as transportation or safety systems, by contacting a sales representative directly. Ensure all environmental regulations regarding controlled substances are met during integration.

Selection Notes

Select this component for circuits requiring a 400 V blocking capability and 0.8 A continuous current handling. Consider the thermal resistance characteristics and derating curves when designing for high ambient temperatures. Verify that the axial package dimensions fit the target PCB layout and that the soldering process adheres to the specified temperature and duration limits to prevent damage.

Part Context

The AU02 belongs to Sanken Electric's discrete semiconductor portfolio, specifically designed for power electronics applications. It serves as a general-purpose fast recovery diode suitable for various switching power supply topologies. The device is intended for use in general-purpose electronic equipment, including home appliances and office machinery, provided appropriate derating and safety measures are applied.

Replacement Considerations

Public confirmed substitute part numbers are not available in the source documentation. Consult Sanken Electric sales representatives for potential alternatives or updated product lines.

FAQ

What is the maximum nonrepetitive peak reverse voltage?

The maximum nonrepetitive peak reverse voltage (VRSM) is 450 V.

How is the junction-to-lead thermal resistance defined?

The thermal resistance from junction to lead (Rth(J-L)) is typically 22 °C/W, measured near the root of the pin.

What are the recommended soldering conditions?

For flow soldering, use 260 °C for 10 seconds maximum. For soldering iron use, apply 350 °C for 3.5 seconds maximum, keeping the tip at least 1.5 mm from the body.