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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.5% SOT25
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：20 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-25
- Grade：-
- Qualification：-
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Overview
The ZTL431BE5TA is a three-terminal adjustable precision 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 B-grade initial tolerance of 0.5% at +25°C and operates within an ambient temperature range of -40°C to +125°C. It supports a continuous cathode current up to 150mA and maintains regulation with sink currents between 1mA and 100mA. The component utilizes a SOT-25 surface-mount package.
Feature Summary
- Offers excellent temperature stability across the full industrial operating range
- Provides high output current handling capability for shunt regulation applications
- Functionally equivalent to TL431/TL432 series with specific maximum voltage ratings
- Totally lead-free and fully RoHS compliant construction
Applications
- Opto-coupler linearization circuits
- Linear regulators
- Improved zener diode replacements
- Variable reference sources
Procurement Notes
Verify the specific ordering code ZTL431BE5TA against the manufacturer's active status list. Confirm that the SOT-25 package matches the design footprint requirements. Ensure the 0.5% B-grade tolerance meets the circuit accuracy specifications. Check for any recent product change notices or end-of-life announcements prior to finalizing procurement plans.
Selection Notes
Select this component when a cost-effective adjustable shunt regulator is required with tighter initial tolerance than standard A-grade devices. The SOT-25 package is suitable for space-constrained surface mount designs. Consider the 20V maximum cathode voltage limit when designing for higher voltage rails. Verify stability boundary conditions regarding capacitive loads if used in feedback loops.
Part Context
This part belongs to the ZTL431/ZTL432 family of adjustable precision shunt regulators. It serves as a direct replacement for traditional zener diodes where improved performance is needed. The device shares electrical specifications with the ZTL432 but differs in pinout configurations for other packages like SOT23F. It is designed for general-purpose power management IC applications.
Replacement Considerations
The datasheet states functional equivalence to TL431/TL432 except for maximum operation voltage. No specific substitute part numbers are listed in the provided documentation.
