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Texas Instruments LM4040C50ILPR — Analog & Data Acquisition

LM4040C50ILPR Shunt Voltage Reference, 5 V ±0.5%, TO-92-3

MPNLM4040C50ILPR
Active

Texas Instruments LM4040C50ILPR, precision shunt voltage reference, fixed 5 V output, ±0.5% tolerance, 80 µVrms noise, 100 ppm/°C drift, -40°C to 85°C, TO-92-3 through-hole package.

$0.3990Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM4040C50ILPR specifications
ParameterValue
Output typeFixed
MountingThrough Hole
Reference typeShunt
Voltage - output (Min (Fixed))5V
Output current15 mA
Current - cathode95 µA
Operating temperature-40°C~85°C(TA)
PackageCut Tape (CT); Tape & Box (TB)
Tolerance±0.5%
CaseTO-226-3, TO-92-3 (TO-226AA) Formed Leads
Noise - 10Hz to 10kHz80µVrms
Temperature coefficient100ppm/°C

Product details

5 V shunt reference — what it does in the circuit

The LM4040C50ILPR is a precision 5 V shunt voltage reference from Texas Instruments' LM4040 family. It provides a fixed 5 V output with ±0.5% initial tolerance, suitable for biasing ADCs, DACs, or setting a stable reference rail in mixed-signal and power-management circuits.

Noise, drift, and cathode current — the parametric floor

Minimum cathode current is 95 µA, and the shunt can sink up to 15 mA. The designer sizes the series resistor so the cathode current stays above 95 µA at the minimum supply voltage and below 15 mA at the maximum supply — standard shunt reference biasing.

Through-hole TO-92-3 package — mounting and footprint

The part comes in a TO-226-3 / TO-92-3 package with formed leads, intended for through-hole PCB mounting.

Frequently asked questions

What is the output voltage of LM4040C50ILPR?

Design engineers need to confirm voltage reference value for circuit fit.

Is LM4040C50ILPR obsolete or active?

Sourcing buyers must know lifecycle risk before committing to a BOM line.

Where can I buy LM4040C50ILPR in stock?

Immediate availability determines if the part can be purchased without lead time.

What is the tolerance of LM4040C50ILPR?

Critical for precision applications that require tight output accuracy.

What is the package type of LM4040C50ILPR?

Determines PCB footprint compatibility and assembly method (through-hole vs SMT).

What is the equivalent for LM4040C50ILPR?

Alternative parts allow second-sourcing for cost or availability reasons.