AU01

Overview

The AU01 is a fast recovery diode manufactured by Sanken Electric USA Inc., rated for a repetitive peak reverse voltage of 400 V and an average forward current of 0.5 A. It features a maximum reverse recovery time of 400 ns, achieved through optimized lifetime control. The device operates within a junction temperature range of -40°C to 150°C and exhibits a typical forward voltage drop of 1.7 V at 25°C with 0.5 A current. It utilizes an axial package with bare leads that are lead-free and RoHS compliant.

Feature Summary

• Optimized lifetime control enables a maximum reverse recovery time of 400 ns
• Lead-free bare leads compliant with RoHS standards
• Flammability rating equivalent to UL94V-0

Applications

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

Procurement Notes

Verify the specific revision status (AU01-DSE Rev.1.4) against the latest manufacturer documentation before implementation. Confirm compliance with applicable environmental regulations such as EU RoHS. Ensure derating curves are consulted for thermal management under varying load conditions. Contact Sanken sales representatives for applications requiring higher reliability than general purpose equipment.

Selection Notes

Select this component for circuits requiring a 400 V blocking capability and 0.5 A continuous current handling. Consider the 400 ns reverse recovery time for switching frequency requirements. Evaluate thermal resistance characteristics and derating curves to ensure operation within the specified junction temperature limits of -40°C to 150°C.

Part Context

The AU01 belongs to the AU01 series of fast recovery diodes produced by Sanken Electric Co., Ltd. This series is designed for power conversion applications in home appliances, office equipment, and telecommunication devices. The product is intended for general purpose electronic equipment and apparatus.

Replacement Considerations

Public confirmed substitute part numbers: None identified in source material.

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 between junction and lead (Rth(J-L)) is typically 22 °C/W, measured near the root of the pin.

What are the soldering limitations for this device?

Flow soldering must be limited to 260°C for 10 seconds maximum. Soldering iron use must be limited to 350°C for 3.5 seconds maximum, applied at least 1.5 mm from the body.