AZ432BZTR-E1

Overview

The AZ432BZTR-E1 is an obsolete low voltage adjustable precision shunt regulator manufactured by Diodes Incorporated. It operates within a cathode voltage range of VREF to 18V and supports a continuous cathode current from 0.1mA to 100mA. The device provides a reference voltage with 1.0% initial accuracy and a typical temperature coefficient of 20PPM/°C. It utilizes a TO-92 package and functions across an ambient temperature range of -40°C to +125°C.

Feature Summary

• Wide programmable precise output voltage capability
• High stability under capacitive load conditions
• Low dynamic output resistance for effective regulation

Applications

• Graphic cards
• PC motherboards
• Voltage adapters
• Switching power supplies
• Chargers

Procurement Notes

This component is officially marked as obsolete and discontinued by the manufacturer. Verify end-of-life status through official channels before design finalization. Confirm availability of replacement parts or alternative sources if procurement is attempted, as standard supply chains no longer support this part number.

Selection Notes

Select this component only for legacy maintenance or specific non-critical applications where obsolescence is acceptable. Evaluate thermal resistance and package constraints associated with the TO-92 housing. Ensure circuit designs account for the maximum operating limits defined in the datasheet to maintain reliability.

Part Context

Part of the AZ432 series of three-terminal adjustable regulators designed to replace Zener diodes. The series offers sharp turn-on characteristics and guaranteed thermal stability. This specific model represents the 1.0% tolerance variant housed in a TO-92 package, intended for general-purpose voltage reference and shunt regulation tasks.

Replacement Considerations

Official documentation indicates using AZ431L as the replacement.