LM4041QBIM3-1.2/NO

Voltage Reference Overview

The LM4041QBIM3-1.2/NO is a micropower shunt voltage reference from Texas Instruments, offering a fixed output of 1.225 V with an initial accuracy of 0.5%. It operates within an extended temperature range of -40°C to +125°C and features a maximum shunt current of 12 mA. The device utilizes a SOT-23-3 package for surface-mount installation.

Voltage Reference Feature Summary

• AEC-Q100 qualified for automotive reliability standards
• Stable operation with any capacitive load without external components
• Low dynamic impedance ensures consistent performance across varying currents

Voltage Reference Applications

• Automotive electronic systems requiring certified components
• Portable devices utilizing battery-powered circuits
• Precision measurement instrumentation

Voltage Reference Procurement Notes

Verify the specific suffix NO against official documentation to confirm it denotes the standard lead-free finish rather than a functional variant. Confirm AEC-Q100 qualification status directly with the manufacturer or authorized distributors, as this certification is critical for automotive supply chain compliance and may not be present on all generic listings.

Voltage Reference Selection Notes

Select this component when automotive-grade reliability is mandatory alongside low power consumption. The 0.5% tolerance suits applications needing moderate precision without the cost of tighter grades. Ensure the circuit design accommodates the 12 mA maximum current limit while maintaining stability with the intended load capacitance in the SOT-23-3 form factor.

Voltage Reference Part Context

This part belongs to the LM4041-N series, which provides fixed and adjustable precision references in sub-miniature packages. The Q-series designation specifically indicates qualification for automotive environments, distinguishing it from industrial or commercial variants within the same family.

Voltage Reference Replacement Considerations

LM4041BIM3-1.2/NOPB: Offers higher 0.2% accuracy but lacks automotive qualification. LM4041DEM3-1.2/NOPB: Provides 1% accuracy and automotive qualification, suitable if looser tolerance is acceptable.