Skip to main content
Log in
STMicroelectronics TL431ID — Analog & Data Acquisition

TL431ID Shunt Reference, ±2.21% Tolerance, 8-SOIC

MPNTL431ID
Obsolete

Texas Instruments TL431ID, adjustable shunt voltage reference, ±2.21% tolerance, 100 mA output, 2.495V reference, -40°C to 105°C, 8-SOIC package, Tube.

$0.9600Ref. price · indicative, final on quote
STMicroelectronics TL431ID datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TL431ID specifications
ParameterValue
Output typeAdjustable
MountingSurface Mount
Reference typeShunt
Voltage - output36 V
Voltage - output (Min (Fixed))2.495V
Output current100 mA
Current - cathode1 mA
Operating temperature-40°C ~ 105°C (TA)
PackageTube
Tolerance±2.21%
Case8-SOIC (0.154\", 3.90mm Width)

Product details

TL431ID — adjustable shunt reference, now obsolete

Its output is set with two external resistors to any value between the internal 2.495 V reference and 36 V, making it a staple for precision voltage regulation in power supplies, data converters, and isolated feedback loops.

The ±2.21% tolerance on the reference voltage sets the initial accuracy floor. The 36 V maximum output voltage covers 24 V industrial rails and 12 V automotive buses with margin.

For new designs, the TL431 family in an active package or a pin-compatible shunt reference from another supplier should be evaluated. Given the obsolete status, date-code consistency and lot traceability are critical; verification of marking and packaging against known-good TI production is recommended before accepting stock.

Frequently asked questions

Is TL431ID obsolete?

Buyers need to know if the part is end-of-life to decide whether to purchase or find a replacement.

What is a direct replacement for TL431ID?

Sourcing buyers and maintenance techs need a drop-in substitute when the original is obsolete or unavailable.

What is the pinout of TL431ID?

Design engineers validating fit must confirm pin compatibility with their PCB layout.

Where can I buy TL431ID?

Transactional buyers need immediate sourcing channels to purchase the part.

What is the difference between TL431ID and TL431A?

Comparison shoppers need to know which variant matches their voltage tolerance and package requirements.

Does TL431ID have a datasheet?

Engineers and techs require the official datasheet to verify electrical characteristics and application notes.