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Texas Instruments TLV431BIDCKR — Analog & Data Acquisition

TLV431BIDCKR shunt reference, adjustable 1.24 V to 6 V

MPNTLV431BIDCKR
Active

Texas Instruments TLV431BIDCKR low-voltage adjustable shunt reference, 1.24 V to 6 V output, ±0.5% tolerance, 15 mA output, 100 µA cathode current, SC-70-6, -40°C to 85°C.

$0.8800Ref. price · indicative, final on quote
Texas Instruments TLV431BIDCKR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TLV431BIDCKR specifications
ParameterValue
Output typeAdjustable
MountingSurface Mount
Reference typeShunt
Voltage - output6 V
Voltage - output (Min (Fixed))1.24V
Output current15 mA
Current - cathode100 µA
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
Tolerance±0.5%
Case6-TSSOP, SC-88, SOT-363

Product details

Adjustable shunt reference, ±0.5% — the tolerance that sets the rail

Its output is programmable from 1.24 V up to 6 V using two external resistors, and the ±0.5% tolerance means the reference voltage stays tight across temperature and load — no trimming pot needed on the board.

15 mA cathode current — enough for most bias and supervision circuits

The shunt can sink up to 15 mA continuous, which covers biasing a feedback divider, setting a comparator threshold, or powering a low-current load like an optocoupler LED. The minimum cathode current is 100 µA, so the bias resistor value stays reasonable even at low supply voltages.

It is not AEC-Q100 qualified, so skip it for under-hood automotive or 125°C environments.

Frequently asked questions

Is TLV431BIDCKR obsolete?

No — the product status is active. No discontinuation or last-time-buy has been announced. It remains a current-production item from Texas Instruments.

What is the tolerance of TLV431BIDCKR?

The initial reference voltage tolerance is ±0.5%. That is the B-grade binning within the TLV431 family — tighter than the standard ±1% version, so it saves a calibration step in precision supplies or monitoring circuits.