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Texas Instruments TLV431BCDBZT — Analog & Data Acquisition

TLV431BCDBZT shunt reference, ±0.5% tolerance, SOT-23-3

MPNTLV431BCDBZT
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Texas Instruments TLV431BCDBZT, adjustable shunt voltage reference, ±0.5% tolerance, 15 mA output, SOT-23-3 package, 0°C to 70°C operating range.

$1.3300Ref. price · indicative, final on quote
Texas Instruments TLV431BCDBZT datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TLV431BCDBZT specifications
ParameterValue
Output typeAdjustable
MountingSurface Mount
Reference typeShunt
Voltage - output6 V
Voltage - output (Min (Fixed))1.24V
Output current15 mA
Current - cathode100 µA
Operating temperature0°C~70°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
Tolerance±0.5%
CaseTO-236-3, SC-59, SOT-23-3

Product details

Precision reference in a small footprint

The TLV431BCDBZT is an adjustable shunt voltage reference from the TLV431 family, offering a ±0.5% tolerance on the 1.24 V reference voltage. That half-percent precision is the B-grade differentiator — it holds tighter than the standard 1% grade, which matters when the reference sets the ADC threshold or the regulation point in a power supply.

Output current and temperature range

The shunt can sink up to 15 mA continuous — enough to drive an optocoupler LED, bias a transistor, or pull up a resistor divider in a feedback loop.

Frequently asked questions

What is the tolerance of TLV431BCDBZT?

The TLV431BCDBZT has a ±0.5% tolerance on the 1.24 V reference voltage, making it a B-grade device tighter than the standard 1% grade.

Is TLV431BCDBZT a direct replacement for TL431?

The TLV431BCDBZT is pin-compatible with the TL431 in the SOT-23-3 package and shares the same adjustable shunt topology, but the TL431 typically has a 2.5 V reference and higher cathode current. For a drop-in replacement, confirm the reference voltage and bias current match your circuit — the TLV431 uses 1.24 V and 100 µA minimum cathode current.

What is the output current capability of TLV431BCDBZT?

The TLV431BCDBZT can sink up to 15 mA continuous cathode current, suitable for driving optocouplers, biasing transistors, or setting feedback thresholds.

Is TLV431BCDBZT RoHS compliant?

The TLV431BCDBZT is listed with Tape & Reel and Cut Tape packaging options, which are typically RoHS-compliant per TI's standard lead-free plating. Confirm the specific date-code lot for your region's compliance requirements.