AU01Z

Overview

The AU01Z is a fast recovery diode manufactured by Sanken Electric. It features a repetitive peak reverse voltage of 200 V and an average forward current rating of 0.5 A. The device achieves a maximum reverse recovery time of 400 ns through optimized lifetime control. Electrical characteristics include a forward voltage drop of 1.7 V at 0.5 A and a nonrepetitive peak reverse voltage of 250 V. Surge forward current capability is rated at 15 A for a half-cycle sine wave. The component operates within a junction temperature range of -40 to 150 °C and utilizes an axial package with bare leads.

Feature Summary

• Optimized lifetime control enables a maximum reverse recovery time of 400 ns.
• Bare leads are lead-free and compliant with RoHS directives.
• Flammability rating is 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 device code on the component body, which includes the lot number indicating the year and month of manufacture. Confirm that the bare leads meet RoHS compliance requirements for your assembly process. Ensure soldering parameters do not exceed 260 °C for 10 seconds during flow soldering or 350 °C for 3.5 seconds using a soldering iron. Maintain a minimum distance of 1.5 mm from the product body when applying heat.

Selection Notes

Select this component for circuits requiring a 200 V blocking capability and 0.5 A continuous current handling. The axial package facilitates through-hole mounting. Consider the thermal resistance between junction and lead when designing heatsinking or layout constraints. Verify derating curves against the expected lead temperature and duty cycle to ensure operation remains within the specified junction temperature limits.

Part Context

This component belongs to the discrete semiconductor category, specifically classified as a fast recovery diode. Sanken Electric produces this device for general-purpose electronic equipment. The axial physical form factor distinguishes it from surface-mount alternatives. The design targets applications where moderate switching speeds and standard current ratings are sufficient for power conversion tasks.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.

FAQ

What is the maximum reverse recovery time specified for the AU01Z?

The maximum reverse recovery time (trr1) is 400 ns, measured at IF = IRP = 10 mA and TJ = 25 °C.

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

The thermal resistance Rth(J-L) is specified as a maximum of 22 °C/W, with lead temperature measured near the root of the pin.

What are the absolute maximum ratings for surge forward current?

The surge forward current (IFSM) is rated at 15 A for a half-cycle sine wave, positive side, lasting 10 ms for one shot.