TL431AQDCKT

Overview

The TL431AQDCKT is an adjustable precision shunt regulator manufactured by Texas Instruments, housed in a SC-70-6 surface-mount package. It operates within a voltage range of 2.495 V to 36 V with an initial accuracy of ±1%. The device supports a maximum cathode current of 100 mA and maintains functionality across a temperature range of -40°C to +125°C.

Feature Summary

• Provides high-precision voltage reference capabilities with tight tolerance specifications for stable regulation.
• Features an adjustable output voltage range allowing flexible integration into various circuit topologies.
• Designed for robust performance across extended industrial temperature ranges.

Applications

• Precision voltage references in power supply circuits
• Voltage monitoring and control systems
• Battery management applications requiring accurate threshold detection

Procurement Notes

Verify the specific suffix 'KT' corresponds to the tape-and-reel packaging configuration required for automated assembly processes. Confirm that the SC-70-6 footprint matches the target PCB design constraints. Ensure compliance with RoHS3 standards if environmental regulations apply to the final product deployment.

Selection Notes

Select this component when precise voltage referencing is critical in space-constrained designs. The SC-70-6 package offers a compact solution compared to larger alternatives. Consider the ±1% accuracy requirement against cost-sensitive options if tighter tolerances are unnecessary for the specific application stability needs.

Part Context

This part belongs to the TL431 family of programmable shunt regulators, widely utilized as a low-cost alternative to Zener diodes. The 'A' designation indicates the ±1% accuracy grade, while 'Q' typically denotes automotive qualification status under AEC-Q100 standards, ensuring reliability in demanding environments.

Replacement Considerations

Direct substitutes include TL431ACDCKTE4 and TL431AQDCKR, which share similar electrical characteristics and pinouts. Verify package compatibility and accuracy grades when transitioning between these variants to ensure circuit performance remains within specified limits.