TL431 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

TL431 product

TL431

Specialized Resistors

Shunt RegulatorVoltage ReferenceAdjustable

The TL431 is a versatile 3-terminal adjustable shunt regulator providing a stable 2.5V reference, suitable for precision voltage regulation and current limiting.

Best for

  • Precision voltage regulation
  • Zener diode replacement
  • Current limiting

Avoid if

  • Applications requiring currents exceeding 100mA without external pass transistors

Check before use

  • Resistor tolerance for voltage accuracy
  • Operating temperature range

Key specifications

Reference Voltage
2.5 V
Max Cathode Voltage
37 V
Cathode Current
1 mA - 100 mA

Compliance & Environment

RoHS
Compliant
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Power ManagementIndustrial Control

CAD Models

Download ECAD models for TL431: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
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Where to Buy

Real-time and catalog pricing from verified distributors

Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

The TL431 is a three-terminal adjustable shunt regulator that acts as a programmable Zener diode, providing a stable reference voltage from 2.5V up to 36V.