LM4041CECT-1.2

Overview

The LM4041CECT-1.2 is a micropower shunt voltage reference manufactured by STMicroelectronics, providing a stable fixed output voltage of 1.225 V. It features an initial accuracy of ±0.5% at 25 °C and maintains stability with capacitive loads. The device operates within an extended industrial temperature range from -40 °C to +125 °C, ensuring reliable performance in demanding environments. It utilizes a SOT323-5L surface-mount package for space-efficient design. Key electrical parameters include a maximum temperature coefficient of 100 ppm/°C and a typical operating current of 40 μA at 25 °C.

Feature Summary

• Fixed 1.225 V typical output voltage
• High precision with ±0.5% initial accuracy at 25 °C
• Ultra-low operating current of 40 μA at 25 °C
• Stable operation with capacitive loads

Applications

• Portable instrumentation systems requiring low power consumption
• Battery-powered measurement devices
• Precision data acquisition systems
• Space-constrained electronic designs

Procurement Notes

Verify the specific suffix 'CECT' corresponds to the desired tolerance grade (±0.5%) and packaging configuration (Tape And Reel) when sourcing. Confirm that the component meets the required industrial temperature range specifications (-40 °C to +125 °C) for your application environment. Ensure compatibility with the SOT323-5L footprint during PCB layout verification.

Selection Notes

Select this component when a compact surface-mount solution is required alongside high precision and low quiescent current. The SOT323-5L package offers significant size reduction compared to traditional through-hole references. Consider the ±0.5% accuracy and 100 ppm/°C temperature coefficient against system requirements for thermal stability and initial calibration needs.

Part Context

This part belongs to the LM4041 family of micropower shunt voltage references designed by STMicroelectronics. The family includes variants with different accuracy grades and package options, such as SOT23-3L. The LM4041 series is engineered for applications where space savings and low power consumption are critical design constraints while maintaining reference stability.

Replacement Considerations

LM4041AECT-1.2

FAQ

Is the LM4041CECT-1.2 stable with capacitive loads?

Yes, the device is specifically designed to remain stable when used with capacitive loads.

What is the operating temperature range for this component?

The component supports an extended industrial temperature range from -40 °C to +125 °C.