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Texas Instruments LM4041EIM3-1.2 — Analog & Data Acquisition

LM4041EIM3-1.2 Shunt Voltage Reference, 1.225 V, ±2%

MPNLM4041EIM3-1.2
NRND

Microchip Technology LM4041EIM3-1.2 precision shunt voltage reference, fixed 1.225 V output, ±2% tolerance, 12 mA output current, SOT-23-3 package, -40°C to 85°C.

$0.5660Ref. price · indicative, final on quote
Texas Instruments LM4041EIM3-1.2 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM4041EIM3-1.2 specifications
ParameterValue
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±2%
CaseTO-236-3, SC-59, SOT-23-3
Noise - 10Hz to 10kHz20µVrms
Temperature coefficient150ppm/°C

Product details

1.225 V shunt reference — what it delivers

The LM4041EIM3-1.2 is a fixed-output shunt voltage reference from Microchip, delivering 1.225 V with a ±2% initial tolerance. It is a three-terminal device in the SOT-23-3 package, designed to provide a stable voltage reference for ADC references, comparator thresholds, and power-supply monitoring in space-constrained boards.

Output current and cathode current — the load budget

The shunt can sink up to 12 mA of output current. The minimum cathode current is 65 µA — below that the reference drops out of regulation.

The LM4041EIM3-1.2 carries a Not Recommended for New Designs (NRND) status. This means Microchip will continue to support existing production for a period, but the part is not intended for new design starts. For ongoing production, the BOM should be reviewed for a drop-in replacement or a design revision before the part moves to end-of-life.

Frequently asked questions

What is the pinout of LM4041EIM3-1.2?

Design engineers need to verify pin compatibility with the PCB layout before using this part.

Is LM4041EIM3-1.2 obsolete or NRND?

Buyers and designers must know if the part is still available for new designs and long-term support.

What is a good replacement for LM4041EIM3-1.2?

With NRND status, sourcing and maintenance teams need a drop-in or equivalent alternative to avoid redesign.

What is the price and lead time for LM4041EIM3-1.2?

Sourcing buyers need current pricing and availability to fill BOM lines and manage procurement costs.

Where can I buy LM4041EIM3-1.2 in stock?

Transactional buyers need immediate distributors that have the part ready to ship.

What is the cross reference for LM4041EIM3-1.2?

Brokers and maintenance techs check cross references to find equivalent parts from other brands or second sources.