Skip to main content
Log in
Texas Instruments TL432BQDBZRG4 — Analog & Data Acquisition

TL432BQDBZRG4 Shunt Voltage Reference, ±0.5% Tolerance

MPNTL432BQDBZRG4
End of Life

Texas Instruments TL432BQDBZRG4, adjustable shunt voltage reference, ±0.5% tolerance, 100 mA output, 2.495 V min, 36 V max, SOT-23-3, -40°C to 125°C.

$0.5600Ref. price · indicative, final on quote
Texas Instruments TL432BQDBZRG4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TL432BQDBZRG4 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~125°C(TA)
PackageTape & Reel (TR)
Tolerance±0.5%
CaseTO-236-3, SC-59, SOT-23-3

Product details

Adjustable shunt reference with tight ±0.5% tolerance

The 700 µA minimum cathode current keeps the device biased in its linear region for stable regulation.

SOT-23-3 package — rework and layout notes

Housed in a SOT-23-3 (TO-236) surface-mount package, this part is friendly under a hot-air rework station. The three leads are clearly spaced, and the package outline leaves room for probe access. No exposed pad means no thermal solder-paste stencil concerns — just a standard footprint with a small copper land pattern.

Frequently asked questions

What is the accuracy (tolerance) of TL432BQDBZRG4?

The tolerance is ±0.5%, which is tighter than the standard TL431 family's typical ±1% to ±2% grades. This matters for precision feedback loops where reference voltage drift directly affects output regulation.

Is TL432BQDBZRG4 a good replacement for TL431?

Yes, the TL432BQDBZRG4 is pin-compatible with the TL431 in the same SOT-23-3 package and shares the same adjustable shunt reference function. The key difference is the tighter ±0.5% tolerance versus the TL431's typical wider tolerance — so it is a drop-in upgrade for designs needing better accuracy.

What is the maximum current output of TL432BQDBZRG4?

The maximum cathode current is 100 mA. This sets the drive capability for optocoupler LEDs in feedback loops or for biasing other circuitry. The 700 µA minimum cathode current ensures the device stays in regulation.