AZ431LBRTR-E1

Overview

The AZ431LBRTR-E1 is an adjustable precision shunt voltage reference manufactured by Diodes Incorporated. It operates within a cathode voltage range of 1.24 V to 18 V and delivers a maximum output current of 100 mA. The device features an initial accuracy of 1% and a temperature coefficient of 20 PPM/°C. It is housed in a surface-mount SOT-89-3 package, suitable for operation between -40°C and +125°C.

Feature Summary

• Provides stable adjustable reference voltage via shunt regulation topology
• Maintains high precision with 1% initial accuracy tolerance
• Operates reliably across extended industrial temperature ranges

Applications

• Precision power supply regulation circuits
• Battery-powered equipment voltage monitoring
• Portable instrumentation reference standards

Procurement Notes

Verify the specific suffix E1 against the manufacturer's latest datasheet to confirm compliance with RoHS directives and material declarations. Confirm the SOT-89-3 package variant matches design requirements, as other suffixes may indicate different packaging or accuracy grades. Ensure moisture sensitivity level handling protocols are followed during assembly.

Selection Notes

Select this component when a compact surface-mount solution is required for adjustable voltage referencing. The 1% accuracy suits general-purpose applications where tighter tolerances are unnecessary. Compare against the AZ431LANTR-E1 if higher 0.5% accuracy is needed, or consider the AZ431LBKTR-E1 for alternative pin configurations.

Part Context

This part belongs to the AZ431L series of low-voltage adjustable shunt regulators from Diodes Incorporated. It serves as a direct functional replacement for legacy TL431 devices in space-constrained designs. The series is widely used in consumer electronics and industrial control systems requiring reliable voltage regulation.

Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include the AZ431LARTR-G1.