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Texas Instruments LM4040A10IDBZT — Analog & Data Acquisition

LM4040A10IDBZT 10 V Shunt Reference, ±0.1%, SOT-23-3

MPNLM4040A10IDBZT
Active

Texas Instruments LM4040A10IDBZT, precision shunt voltage reference, 10 V fixed output, ±0.1% tolerance, 100 ppm/°C, 180 µVrms noise, SOT-23-3, Tape & Reel.

$2.5297Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM4040A10IDBZT specifications
ParameterValue
Output typeFixed
MountingSurface Mount
Reference typeShunt
Voltage - output (Min (Fixed))10V
Output current15 mA
Current - cathode125 µA
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR)
Tolerance±0.1%
CaseTO-236-3, SC-59, SOT-23-3
Noise - 10Hz to 10kHz180µVrms
Temperature coefficient100ppm/°C

Product details

10 V shunt reference with ±0.1% initial accuracy

It uses a shunt (two-terminal) topology, meaning it behaves like a Zener diode and requires an external series resistor to set the bias current. The reference is rated for a cathode current range from 125 µA up to 15 mA, giving the designer flexibility to balance quiescent power against load drive capability.

Noise and temperature drift — the precision envelope

Temperature coefficient is 100 ppm/°C. The SOT-23-3 package (also listed as TO-236-3 / SC-59 / SOT-23-3) keeps the board footprint small, but the thermal dissipation is limited — the 15 mA maximum output current is rarely used at the full rating in this package without careful PCB copper area for heat sinking.

RoHS compliance is assumed for the lead-free SOT-23-3 package, though the evidence does not explicitly state a RoHS certificate number.

Frequently asked questions

Is LM4040A10IDBZT obsolete?

No — the manufacturer lists this part as Active. No discontinuation notice or last-time-buy schedule has been issued.