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Texas Instruments TL431BIDBZTG4 — Analog & Data Acquisition

TL431BIDBZTG4 Shunt Reference, ±0.5% Tolerance, SOT-23-3

MPNTL431BIDBZTG4
End of Life

Texas Instruments TL431BIDBZTG4 adjustable shunt voltage reference, ±0.5% tolerance, 100 mA output, SOT-23-3 package, -40°C to 85°C operating range.

$0.4400Ref. price · indicative, final on quote
Texas Instruments TL431BIDBZTG4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TL431BIDBZTG4 specifications
ParameterValue
Output typeAdjustable
MountingSurface Mount
Reference typeShunt
Voltage - output36 V
Voltage - output (Min (Fixed))2.495V
Output current100 mA
Current - cathode700 µA
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR)
Tolerance±0.5%
CaseTO-236-3, SC-59, SOT-23-3

Product details

Precision shunt reference in a SOT-23-3

It delivers a ±0.5% initial tolerance — the B-grade precision — making it suitable for feedback loops in isolated power supplies, adjustable linear regulators, and as a low-cost ADC reference. It sinks up to 100 mA continuous cathode current with a minimum operating current of 700 µA, which sets the bias resistor ceiling in a shunt configuration. The SOT-23-3 package (also listed as TO-236-3 or SC-59) keeps the footprint small for dense PCB layouts.

SOT-23-3 footprint and Tape & Reel delivery

The SOT-23-3 package (3-pin, 0.95 mm pitch typical) is a standard small-signal outline. The Tape & Reel shipping format suits high-volume pick-and-place assembly.

Frequently asked questions

What is the tolerance of TL431BIDBZTG4?

The TL431BIDBZTG4 has a ±0.5% initial tolerance on the reference voltage. That is the B-grade precision level, tighter than the standard ±2% or ±1% versions in the TL431 family.

What package is TL431BIDBZTG4?

The TL431BIDBZTG4 comes in a SOT-23-3 package (also described as TO-236-3 or SC-59). It is supplied in Tape & Reel for automated assembly.

What is the output current rating of TL431BIDBZTG4?

The TL431BIDBZTG4 can sink up to 100 mA continuous cathode current. The minimum cathode current for regulation is 700 µA.