Two pieces of the Texas Instruments LM4040A30IDBZR shunt voltage reference in a SOT23 package. Key benefits Provides a stable 3.0 V reference for precision analog circuits, improving accuracy in sensing and measurement applications. Simple shuntreference solution that requires minimal external components, aiding straightforward, reliable design. Compact SOT23 package enables a small board footprint, making it suitable for portable and spaceconstrained applications. Trusted TI device with consistent performance, support, and availability for production designs. Practical value in multidevice builds, offering two units per for convenience and efficiency. Key attributes Model: LM4040A30IDBZR Type: Shunt voltage reference Output voltage: 3.0 V Package: SOT23 Quantity per package: 2 pieces Brand: Texas Instruments (TI) Compatibility and performance considerations Suitable for integration in standard shuntreference configurations within analog and mixedsignal circuitry. Designed to deliver a stable reference in a compact, lowprofile form factor suitable for compact PCBs and consumer electronics. Applications and use cases ADC and DAC reference: Use as a stable 3.0 V reference source to improve the accuracy and repeatability of data conversions in microcontroller and processorbased systems. Precision sensor interfaces: Provide a reliable reference voltage for sensor signal conditioning and calibration in portable measurement devices. Calibration and test equipment: Serve as a compact reference in bench and field calibration tools where a fixed voltage standard is required. Notes This listing includes two LM4040A30IDBZR devices in a SOT23 package, aligned with the original model and packaging.