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The LM4040QEIM3-2.5/NOPB is a micropower shunt voltage reference from the LM4040-N series, manufactured by Texas Instruments. It provides a fixed output voltage of 2.5 V with an initial accuracy of ±0.1%. The device features a temperature coefficient of 40 ppm/°C and operates within a junction temperature range of -40°C to +125°C. Packaged in a surface-mount SOT-23 (TO-236) housing with three pins, it supports a maximum cathode current of 15 mA. This component is qualified under the AEC-Q100 standard for automotive applications.
Verify the specific suffix 'Q' confirms AEC-Q100 automotive qualification and the 'E' indicates the ±0.1% accuracy grade. Confirm the package type matches the required SOT-23 footprint. Ensure the operating environment aligns with the specified -40°C to +125°C temperature range. Check for RoHS compliance status as indicated by the '/NOPB' designation.
Select this component when high precision and automotive reliability are required. The ±0.1% accuracy offers tighter tolerance than standard grades. The low temperature coefficient ensures stability across wide thermal variations. Consider the SOT-23 package for space-constrained PCB layouts. Verify that the 15 mA maximum current meets the circuit load requirements.
This part belongs to the LM4040-N family of micropower shunt voltage references. The family includes various voltage options and accuracy grades. The 'Q' prefix denotes automotive qualification. The 'E' suffix specifies the highest precision tier. The device serves as a stable reference for ADCs, DACs, and regulators.
LM4040QDIM3-2.5/NOPB: Lower accuracy (±1%). LM4040QAIM3-2.5/NOPB: Higher accuracy (±0.05%) if available. LM4040QEIM3-2.5: Non-RoHS version.