LM385M3X-1.2/NOPB

Overview

The LM385M3X-1.2/NOPB is a micropower voltage reference diode manufactured by Texas Instruments, housed in an SOT-23 surface-mount package. It provides a fixed output voltage of 1.235 V with an initial accuracy of ±2%. The device operates within a temperature range of 0°C to +70°C and features a maximum shunt current of 20 mA. Its temperature coefficient is specified at 150 ppm/°C, ensuring stable performance in commercial applications requiring precise low-power voltage regulation.

Feature Summary

• Fixed 1.235 V output for precision reference applications
• Micropower design suitable for battery-operated systems
• Compact SOT-23 surface-mount packaging

Applications

• Portable instrumentation voltage references
• Battery-powered measurement devices
• Microprocessor supply monitoring circuits

Procurement Notes

Verify the specific suffix 'M3X' indicates the SOT-23 tape-and-reel packaging configuration distinct from bulk or tube variants. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure thermal management aligns with the commercial operating temperature limits defined in the datasheet.

Selection Notes

Select this component when a fixed 1.235 V reference is required in a small footprint. Consider the ±2% initial accuracy and 150 ppm/°C temperature coefficient against system tolerance requirements. Compare against adjustable variants if circuit flexibility is needed, or higher precision models if tighter error margins are critical.

Part Context

This part belongs to the LM385 family of micropower voltage references, offering both fixed and adjustable versions. The LM385 series is widely used in industrial and consumer electronics for providing stable reference voltages. The '/NOPB' designation typically indicates lead-free and RoHS-compliant manufacturing standards.

Replacement Considerations

LM385M3-1.2/NOPB serves as a direct equivalent variant within the same product line.