Skip to main content
Log in
Texas Instruments TL432BIDBZTG4 — Analog & Data Acquisition

TL432BIDBZTG4 Shunt Voltage Reference, ±0.5% Tolerance

MPNTL432BIDBZTG4
End of Life

Texas Instruments TL432BIDBZTG4, adjustable shunt voltage reference, ±0.5% tolerance, 100 mA output, 2.495V min, 36V max, SOT-23-3, -40°C to 85°C.

$0.5100Ref. price · indicative, final on quote
Texas Instruments TL432BIDBZTG4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TL432BIDBZTG4 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

±0.5% adjustable shunt reference in SOT-23-3

It provides a 2.495 V minimum reference with a ±0.5% tolerance band, settable to any value up to 36 V using two external resistors. This is the precision-grade 'B' variant of the TL432 family, where the tolerance spec drives the regulation accuracy in the feedback loop.

100 mA cathode current and 700 µA minimum

Rated for 100 mA continuous cathode current, the TL432BIDBZTG4 can sink enough current to drive optocoupler LEDs in isolated power supplies or bias the feedback node in a linear regulator. The 700 µA minimum cathode current sets the lower bound for the bias resistor — design the series resistor to keep the device above this knee across the input voltage range and load conditions.

SOT-23-3 footprint and tape-and-reel delivery

Supplied in Tape & Reel (TR) format, the SOT-23-3 package (also listed as TO-236-3 / SC-59) is a standard three-pin footprint shared across the TL431/TL432 family. The surface-mount body suits automated pick-and-place assembly and reflow soldering.

Frequently asked questions

Is TL432BIDBZTG4 a replacement for TL431?

The TL432BIDBZTG4 is functionally equivalent to the TL431 in the same ±0.5% B-grade tolerance, with the same 2.495 V reference and 36 V maximum output. The pinout differs — the TL432 uses a different pin assignment (reference, anode, cathode) from the TL431. Confirm the PCB footprint matches the SOT-23-3 pinout before substituting.