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Texas Instruments TL431BIDBVRE4 — Analog & Data Acquisition

TL431BIDBVRE4 Shunt Voltage Reference, ±0.5%, SOT-23-5

MPNTL431BIDBVRE4
Obsolete

Texas Instruments TL431BIDBVRE4, adjustable shunt voltage reference, ±0.5% tolerance, 100 mA output, 2.495 V reference, SOT-23-5 package, -40°C to 85°C.

Texas Instruments TL431BIDBVRE4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TL431BIDBVRE4 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%
CaseSC-74A, SOT-753

Product details

Shunt reference with ±0.5% accuracy in SOT-23-5

It is part of the broad TL431 family, widely used as a precision reference in linear and switched-mode power supplies, battery chargers, and data-acquisition systems. The ±0.5% tolerance (B grade) places it above the standard ±1% or ±2% TL431 variants, making it suitable for applications where tighter output accuracy is needed without moving to an external precision reference.

100 mA cathode current and 36 V max output

The device can sink up to 100 mA continuous cathode current, which determines the maximum load the shunt regulator can handle or the base-drive current it can supply to an external pass transistor. The output voltage is adjustable from 2.495 V up to 36 V via two external resistors, covering the common 3.3 V, 5 V, and 12 V rail references.

The TL431BIDBVRE4 is officially marked as Obsolete by Texas Instruments. Buyers should confirm date code and quantity availability at time of inquiry; no franchised stock is expected.

Package and footprint: SOT-23-5 (SC-74A)

The 5-pin footprint is shared with many other TL431 variants, so a board designed for the SOT-23-5 package can accept multiple grades or suppliers without layout changes. The shipping medium is Tape & Reel (TR), the standard for automated pick-and-place assembly.

Frequently asked questions

What is the replacement for TL431BIDBVRE4?

Texas Instruments does not list a direct official successor for this specific B-grade SOT-23-5 variant. A functionally equivalent replacement would be any TL431 in the same SOT-23-5 package with a ±0.5% tolerance, such as the TL431BIDBZR (if still active) or the TL431BQDBZR (automotive grade). Confirm the exact tolerance and package before substituting.

What is the accuracy of TL431BIDBVRE4?

The TL431BIDBVRE4 has a ±0.5% tolerance on the reference voltage (2.495 V typical). This is the B-grade accuracy level, tighter than the standard ±1% or ±2% TL431 grades.

Is TL431BIDBVRE4 equivalent to TL431?

Yes, the TL431BIDBVRE4 is a specific variant of the TL431 family. It shares the same basic function and pinout as the generic TL431, but with a tighter ±0.5% tolerance and in a SOT-23-5 package. Any TL431 in the same package can generally be used as a drop-in replacement, provided the tolerance grade meets the design requirement.