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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.5% SOT23-5
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：36 V
- Current - Output：100 mA
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：SC-74A, SOT-753
- Supplier Device Package：SOT-23-5
- Grade：-
- Qualification：-
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Overview
The AS431AKTR-E1 is a three-terminal adjustable precision shunt regulator manufactured by Diodes Incorporated. It provides programmable output voltage from 2.5V to 36V with an initial accuracy of 0.5%. The device operates within a cathode current range of 1mA to 100mA and features a typical temperature coefficient of 20PPM/°C. It is housed in an SOT-25 package and supports an operating ambient temperature range of -40°C to +125°C.
Feature Summary
- Programmable precise output voltage ranging from 2.5V to 36V
- High stability under capacitive load conditions
- Low equivalent full-range temperature coefficient for thermal consistency
- Sharp turn-on characteristics suitable for Zener diode replacement
Applications
- Switching power supplies
- Chargers
- Voltage adapters
- Graphic cards
- Precision voltage reference circuits
Procurement Notes
Verify the specific ordering suffix E1 confirms RoHS compliance and lead-free status as defined by the manufacturer. Confirm the package type matches the required SOT-25 footprint and that the 0.5% voltage tolerance meets design specifications. Ensure the tape and reel quantity aligns with production requirements.
Selection Notes
Select this component when a low-cost, high-stability adjustable shunt regulator is needed to replace discrete Zener diodes. The SOT-25 package offers a compact surface-mount solution. Consider the 0.5% initial accuracy and wide operating temperature range for applications requiring consistent performance across varying environmental conditions.
Part Context
This part belongs to the AS431 family of adjustable precision shunt regulators. The series is designed to provide stable reference voltages and regulation capabilities in a small form factor. The AS431AKTR-E1 specifically denotes the SOT-25 package variant with 0.5% tolerance and standard RoHS packaging.
Replacement Considerations
AS431AKTR-G1
FAQ
What is the minimum cathode current required for regulation?
The minimum cathode current for regulation is typically 1.0 mA.
Is the AS431AKTR-E1 compatible with capacitive loads?
Yes, the device features high stability under capacitive load conditions.
