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Texas Instruments LM4041QAIM3-1.2/NO — Analog & Data Acquisition

LM4041QAIM3-1.2/NO Shunt Voltage Reference, 1.225 V, ±0.1%

MPNLM4041QAIM3-1.2/NO
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Texas Instruments LM4041QAIM3-1.2/NO, Automotive AEC-Q100, Shunt Voltage Reference, Fixed 1.225 V output, ±0.1% Tolerance, 12 mA Output, 65 µA Cathode Current, SOT-23-3, -40°C to 85°C.

$2.3800Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM4041QAIM3-1.2/NO specifications
ParameterValue
SeriesAutomotive, AEC-Q100
Output typeFixed
MountingSurface Mount
Reference typeShunt
Voltage - output (Min (Fixed))1.225V
Output current12 mA
Current - cathode65 µA
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
Tolerance±0.1%
CaseTO-236-3, SC-59, SOT-23-3
Noise - 10Hz to 10kHz20µVrms
Temperature coefficient100ppm/°C

Product details

AEC-Q100 precision shunt reference for automotive and industrial BOMs

The LM4041QAIM3-1.2/NO from Texas Instruments is a precision shunt voltage reference delivering a fixed 1.225 V output with ±0.1% initial tolerance. It is qualified to AEC-Q100, making it the automotive-grade variant of the standard LM4041 series — the part for under-hood, chassis, and cabin-domain electronics where the BOM must meet the stress profile of automotive environments.

1.225 V rail — what the shunt topology means for your design

As a shunt reference, this part behaves like a precision Zener: it sinks current from a supply through an external resistor to regulate the output voltage. The cathode current (65 µA typical) is the minimum bias needed to maintain regulation; the 12 mA output capability lets it drive ADC reference inputs or bias low-power analog circuitry without an additional buffer.

SOT-23-3 package — footprint and sourcing

The part is offered in a standard SOT-23-3 package (also listed as TO-236-3 / SC-59).

Frequently asked questions

Can the LM4041QAIM3-1.2/NO replace the standard LM4041AIM3-1.2?

Yes, in terms of pinout and electrical specs — both are 1.225 V shunt references in SOT-23-3 with the same tolerance, noise, and temperature coefficient. The QAIM3 variant adds AEC-Q100 qualification, so it is the drop-in replacement for any BOM that requires automotive-grade parts. The standard AIM3 part does not carry the AEC-Q100 rating.