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Texas Instruments TL431ACDBVR — Analog & Data Acquisition

TL431ACDBVR Shunt Voltage Reference, Adj 2.495V to 36V, ±1%

MPNTL431ACDBVR
Active

Texas Instruments TL431ACDBVR, adjustable shunt voltage reference, 2.495V min/fixed, 36V max, ±1% tolerance, 100 mA output, 600 µA cathode current, SOT-23-5, 0°C to 70°C.

$0.5400Ref. price · indicative, final on quote
PackagingSC-74A, SOT-753
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TL431ACDBVR specifications
ParameterValue
Output typeAdjustable
MountingSurface Mount
Reference typeShunt
Voltage - output36 V
Voltage - output (Min (Fixed))2.495V
Output current100 mA
Current - cathode600 µA
Operating temperature0°C~70°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
Tolerance±1%
CaseSC-74A, SOT-753

Product details

Adjustable shunt reference — the 2.495 V floor and 36 V ceiling

The ±1% tolerance is the standard precision grade for this family — tight enough for most power-supply feedback loops, comparator thresholds, and low-dropout regulator references, but not the ±0.5% or ±0.1% tiers used in metrology or high-accuracy ADC references. The SOT-23-5 package (SC-74A, SOT-753) is a common footprint for compact designs, and the operating temperature range of 0°C to 70°C limits it to commercial or indoor equipment — not automotive or extended industrial environments.

Package and mounting — SOT-23-5, surface-mount only

The SOT-23-5 footprint is standard and widely supported by PCB layout tools; no special thermal management is required at the 100 mA output ceiling, but good copper connection to the cathode pin helps with heat spreading in continuous high-current operation.

Frequently asked questions

How does TL431ACDBVR compare to the LM4132AMF-4.1/NOPB?

The LM4132 is a fixed 4.096 V series reference with ±0.05% tolerance and a 20 ppm/°C temperature coefficient, operating from -40°C to 125°C. The TL431ACDBVR is an adjustable shunt reference with ±1% tolerance and a 0°C to 70°C range — a different topology and precision tier. They are not pin-compatible; the LM4132 is a higher-accuracy, wider-temperature alternative if the design can accept a fixed output and series topology.