LM185H-1.2/NOPB

$8.81

Description：LM185-1.2-N MICROPOWER VOLTAGE R
Series：-
Mfr：National Semiconductor
Package：Bulk

SKU:ba94fd3c4759 Category: Voltage Reference Brand: National Semiconductor

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Product introduction

Product Detailed Parameters

Description：LM185-1.2-N MICROPOWER VOLTAGE R
Series：-
Mfr：National Semiconductor
Package：Bulk
Output Type：Fixed
Voltage - Output (Min/Fixed)：1.235V
Voltage - Output (Max)：-
Current - Output：20 mA
Operating Temperature：-55°C ~ 125°C (TA)
Mounting Type：Through Hole
Package / Case：TO-46-2 Metal Can
Supplier Device Package：TO-46-2, Metal Can
Grade：-
Qualification：-

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LM185H-1.2/NOPB

Overview

The LM185H-1.2/NOPB is a micropower shunt voltage reference diode manufactured by Texas Instruments, continuing the National Semiconductor lineage. It provides a stable 1.2V reference voltage with an initial accuracy of 1%. The device operates within a temperature range of -55°C to +125°C and features a low temperature coefficient of 150 ppm/°C. Designed for through-hole mounting in TO-46 packages, it supports a maximum shunt current of 20 mA, ensuring reliable performance in precision analog circuits requiring low power consumption.

Feature Summary

Micropower operation suitable for battery-powered applications
Shunt regulation architecture for stable voltage referencing
Wide industrial temperature range capability

Applications

Precision analog-to-digital converter references
Battery monitoring systems
Instrumentation signal conditioning

Procurement Notes

Verify the manufacturer designation as Texas Instruments, which acquired National Semiconductor's analog portfolio. Confirm the NOPB suffix indicates lead-free and RoHS compliance. Ensure the TO-46 package style matches the mechanical requirements of the target PCB layout. Cross-reference the specific 1.2V variant against other LM185 series options to confirm functional equivalence.

Selection Notes

Select this component when a low-cost, through-hole voltage reference is required for space-constrained or legacy designs. The TO-46 metal can package offers robust environmental protection. Consider the 1% initial accuracy and 150 ppm/°C drift for high-stability applications. Evaluate the 20 mA maximum current limit against the circuit's load requirements to ensure proper shunt regulation.

Part Context

This part belongs to the LM185/LM285/LM385 family of micropower voltage reference diodes. These devices are widely used as bandgap references in various electronic systems. The LM185H variant specifically denotes the military-grade temperature range extension compared to commercial counterparts.