LM4050BEM3X-4.1/NOPB

Voltage Reference Overview

The LM4050BEM3X-4.1/NOPB is a precision micropower shunt voltage reference from Texas Instruments, offering a fixed output of 4.096 V with an initial accuracy of ±0.2%. It operates within a temperature range of -40°C to +125°C and features a temperature coefficient of 50 ppm/°C. The device supports a maximum shunt current of 15 mA and is housed in a compact SOT-23 (DBZ) package with three pins. Designed for surface-mount installation, it provides stable voltage regulation suitable for space-constrained applications requiring high precision.

Voltage Reference Feature Summary

• Provides precise micropower shunt voltage regulation with low temperature drift
• Operates reliably across extended industrial temperature ranges
• Utilizes compact surface-mount packaging for efficient board space utilization

Voltage Reference Applications

• Portable instrumentation requiring stable reference voltages
• Battery-powered measurement systems
• Data acquisition channels needing accurate voltage benchmarks

Voltage Reference Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free compliance and RoHS adherence as per manufacturer specifications. Confirm the 'B' grade denotes the ±0.2% initial accuracy tolerance required for your design. Ensure the SOT-23 footprint matches your PCB layout constraints. Check for any recent product change notifications regarding manufacturing updates or material substitutions that may affect long-term supply chain stability.

Voltage Reference Selection Notes

Select this component when a fixed 4.096 V reference with tight initial accuracy is required. The ±0.2% tolerance suits applications demanding higher precision than standard grades. Consider the 50 ppm/°C temperature coefficient for environments with significant thermal variations. The micropower characteristic makes it ideal for battery-operated devices where minimizing quiescent current is critical for extending operational life.

Voltage Reference Part Context

This part belongs to the LM4050 series of precision micropower shunt voltage references. The series includes various output voltages and accuracy grades, such as the AIM3X and QBIM3X variants. These components are designed to replace older zener diodes in circuits requiring superior stability and lower noise. The family is widely used in analog signal conditioning and reference applications across industrial and consumer electronics.

Voltage Reference Replacement Considerations

Direct substitutes include LM4050BEM3-4.1/NOPB and LM4050AIM3X-4.1/NOPB, which share similar electrical characteristics and pinouts. Verify compatibility with LM4050QBEM3-4.1/NOPB if automotive qualification is not strictly required but similar performance is needed. Ensure replacement parts maintain the same SOT-23 package and 4.096 V output specification.