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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.5% TO92
- Series：-
- Mfr：Diodes Incorporated
- Package：Cut Tape (CT),Tape & Box (TB)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.495V
- Voltage - Output (Max)：36 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 AS431HAZTR-G1 is a three-terminal adjustable precision shunt regulator manufactured by Diodes Incorporated. It provides programmable output voltage ranging from the internal reference of 2.495V up to 36V. The device features a typical temperature coefficient of 20ppm/°C and maintains stability under capacitive loads. It operates within an ambient temperature range of -40°C to +125°C and supports a cathode current sink capacity between 0.5mA and 100mA. This component utilizes a TO-92 package with Ammo packing.
Feature Summary
- Programmable precise output voltage capability spanning from the internal reference level to the maximum cathode voltage limit.
- Guaranteed thermal stability over the full operating temperature range with low equivalent full-range temperature deviation.
- High stability performance when driving capacitive loads, ensuring reliable regulation without oscillation.
Applications
- Switching power supplies
- Chargers
- Voltage adapters
- Graphic cards
- Precision voltage references
Procurement Notes
Verify that the specific ordering suffix matches the required package type and voltage tolerance. Confirm the presence of the Ammo packing designation for the TO-92 variant. Ensure compliance with RoHS 3 and Halogen-free requirements if mandated by the design specifications. Cross-reference the marking ID to validate the manufacturing date code and assembly house information upon receipt.
Selection Notes
Select this component when a through-hole solution is required for adjustable shunt regulation applications. The TO-92 package accommodates higher thermal resistance compared to surface-mount alternatives. Verify that the load capacitance falls within the stable operating boundary conditions defined in the datasheet. Ensure the circuit design maintains the cathode current within the specified 0.5mA to 100mA range for optimal performance.
Part Context
This part belongs to the AS431H series of adjustable precision shunt regulators. The series includes variants in both SOT-23 and TO-92 packages. The 'A' suffix indicates a 0.5% voltage tolerance, while 'Z' denotes the TO-92 package configuration. The 'G1' suffix confirms Green (RoHS compliant) manufacturing. Other series members include mirror pin-out options and different tolerance grades.
Replacement Considerations
AS431HANTR-G1
FAQ
What is the minimum cathode current required for regulation?
The minimum cathode current for regulation is typically 0.5mA at the reference voltage.
Is the device stable with capacitive loads?
Yes, the AS431H features high stability under capacitive loads, though specific boundary conditions regarding load capacitance and cathode current must be observed.
