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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 1% SOT23
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：20 V
- Current - Output：100 mA
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：-
- Qualification：-
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Overview
The ZHT431F01TC is a three-terminal adjustable precision zener shunt regulator manufactured by Diodes Incorporated. It provides an output voltage range from 2.5V to 20V, set via external resistors. The device features a reference voltage of 2.5V with a tolerance of ±1%. It supports a cathode current up to 100mA and operates within a temperature range of -55°C to +125°C. The maximum temperature coefficient is 67ppm/°C. The component is housed in a surface-mount SOT-23 (Type DN) package.
Feature Summary
- Temperature compensated for operation over the full temperature range
- Low output noise characteristics
- Programmable output voltage capability
Applications
- Series and Shunt Regulator
- Voltage Monitor
- Over Voltage / Under Voltage Protection
- Switch Mode Power Supplies
Procurement Notes
Verify that the specific suffix TC corresponds to the standard tape and reel packaging configuration documented for this part family. Confirm the 1% tolerance designation aligns with the F01 marking code specified in the ordering information section of the datasheet. Ensure compatibility with the SOT-23 Type DN footprint dimensions provided in the package outline data.
Selection Notes
Select this component when precise voltage referencing is required across extreme environmental conditions. The extended operating temperature range makes it suitable for demanding industrial applications. Consider the low output noise feature for sensitive analog circuits. Verify that the 100mA current sink capability meets the load requirements of the target design.
Part Context
This device belongs to the ZHT431 series of adjustable precision zener shunt regulators. It serves as a high-performance replacement for standard zener diodes where improved stability and accuracy are necessary. The series includes variants with different tolerance levels and packaging options to suit various manufacturing needs.
Replacement Considerations
Datasheet documentation lists the ZHT431F01-7 as an end-of-life alternative without a direct substitute. No other public confirmed substitute part numbers are identified in the provided source material.
FAQ
What is the minimum cathode current required for regulation?
The minimum cathode current for regulation is 50µA.
How is the output voltage determined?
The output voltage is programmable between 2.5V and 20V using two external divider resistors.
