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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.5% TO92
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Box (TB)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：1.25V
- Voltage - Output (Max)：18 V
- Current - Output：100 mA
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Supplier Device Package：TO-92
- Grade：-
- Qualification：-
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Overview
The AZ432AZTR-E1 is a discontinued low voltage three-terminal 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 an initial accuracy of 0.5% with a typical temperature coefficient of 20PPM/°C and dynamic output resistance of 0.05Ω. Designed for thermal stability across -40°C to +125°C, it utilizes a TO-92 package in tape and reel configuration.
Feature Summary
- Offers wide programmable precise output voltage capability between 1.25V and 18V using two external resistors.
- Ensures high stability under capacitive load conditions with sharp turn-on characteristics.
- Provides guaranteed thermal stability over the full operating range with low temperature deviation.
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. No new production units are available through authorized channels. Verification of part authenticity is critical when sourcing from secondary markets. Designers must confirm that existing stock matches the exact ordering suffixes and package specifications required for their specific application before procurement.
Selection Notes
Engineers should transition to alternative components due to the obsolete status of this part. The datasheet explicitly recommends using the AZ431L as a replacement. Selection criteria should focus on verifying equivalent electrical parameters such as reference voltage tolerance, sink current capacity, and package dimensions to ensure compatibility with existing circuit designs without requiring layout modifications.
Part Context
The AZ432 series serves as a low-voltage adjustable precision shunt regulator designed to replace Zener diodes in various electronic circuits. This specific model belongs to the AZ432 family, which offers both 0.5% and 1.0% voltage tolerance options. The series is characterized by its ability to function effectively in switching power supplies and chargers while maintaining low output impedance and noise levels.
Replacement Considerations
The official datasheet identifies the AZ431L as the confirmed substitute part number for this discontinued component. Engineers should verify pinout compatibility and electrical specifications against the AZ431L datasheet to ensure seamless integration into existing designs without requiring significant circuit adjustments.
FAQ
What is the recommended replacement for the AZ432AZTR-E1?
The official datasheet specifies the AZ431L as the recommended replacement part for the discontinued AZ432 series.
How is the output voltage determined for this device?
The output voltage can be set to any value between 1.25V and 18V using two external resistors connected to the reference pin.
What is the maximum continuous cathode current rating?
The device supports a continuous cathode current range from 0.1mA up to 100mA.
