LM185H-1.2-SMD

Overview

The LM185H-1.2-SMD is a micropower voltage reference diode manufactured by Texas Instruments, functioning as a precision shunt regulator. It provides a stable reference voltage of approximately 1.2V and is designed for applications requiring low power consumption and high accuracy in compact surface-mount configurations.

Feature Summary

• Micropower operation suitable for battery-powered systems
• Precision shunt regulation with stable output voltage
• Surface-mount package design for automated assembly

Applications

• Battery-powered instrumentation
• Portable measurement devices
• Low-power data acquisition systems

Procurement Notes

Verify the specific suffix 'SMD' against the official datasheet to confirm the exact package type and tape-and-reel specifications. Ensure the part number matches the intended temperature grade and initial accuracy requirements for your circuit design before ordering.

Selection Notes

Select this component when a low-cost, low-power zener-based reference is sufficient. Compare its current consumption and temperature coefficient against bandgap references if higher precision or lower drift is required for the application environment.

Part Context

This device belongs to the LM185/LM285/LM385 family of micropower voltage reference diodes. These components are widely used as simple, cost-effective reference sources in analog circuits where extreme precision is not critical but stability and low current draw are important.

Replacement Considerations

Check for direct equivalents such as LM285 or LM385 variants from Texas Instruments or other manufacturers like ON Semiconductor and Microchip, ensuring pinout and electrical characteristics match.