Skip to main content
STMicroelectronics TL431CDT — Analog & Data Acquisition

STMicroelectronics TL431CDT Shunt Voltage Reference, 2.495 V

MPNTL431CDT
Active

STMicroelectronics TL431CDT, adjustable shunt voltage reference, 2.495 V minimum, 36 V maximum output, ±2.21% tolerance, 100 mA output, 8-SOIC surface mount package, 0°C to 70°C operating temperature.

$0.4200Ref. price · indicative, final on quote
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TL431CDT specifications
ParameterValue
Output typeAdjustable
MountingSurface Mount
Reference typeShunt
Voltage - output36 V
Voltage - output (Min (Fixed))2.495V
Output current100 mA
Current - cathode1 mA
Operating temperature0°C ~ 70°C (TA)
PackageTape & Reel (TR) Cut Tape (CT)
Tolerance±2.21%
Case8-SOIC (0.154\", 3.90mm Width)

Product details

Shunt reference for general-purpose regulation

Its internal bandgap delivers a nominal 2.495 V reference at the cathode, adjustable up to 36 V with two external resistors. The shunt topology means it sinks current through the cathode to regulate the output voltage – a workhorse for linear regulators, isolated flyback feedback loops, and comparator-based threshold detectors where a precision reference isn't required.

Active lifecycle – no last-time-buy worry

No EOL notice, no last-time-buy deadline to track. For procurement planning, this means no allocation scramble and no forced redesign for the foreseeable future.

Commercial temperature range – indoor use only

That covers office equipment, consumer electronics, and indoor power supplies. It is not specified for indus.

8-SOIC footprint – board layout fit

It fits automated pick-and-place assembly and reflow soldering. Tape & Reel and Cut Tape options are available for volume or prototype quantities.

Frequently asked questions

What is the equivalent or replacement for TL431CDT?

For a tighter tolerance, the STMicroelectronics TL1431ACL5T offers ±0.25% tolerance with a 90 ppm/°C temperature coefficient, also in an adjustable shunt topology and surface-mount package. It is a functional upgrade for precision applications.