LM285H-1.2

$5.47

Description：IC VREF SHUNT 1% TO46-2
Series：-
Mfr：National Semiconductor
Package：Bulk

SKU:0a27b136417b Category: Voltage Reference Brand: National Semiconductor

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT 1% TO46-2
Series：-
Mfr：National Semiconductor
Package：Bulk
Output Type：Fixed
Voltage - Output (Min/Fixed)：1.235V
Voltage - Output (Max)：-
Current - Output：20 mA
Operating Temperature：-40°C ~ 85°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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LM285H-1.2

Overview

The LM285H-1.2 is a micropower voltage reference diode manufactured by National Semiconductor, now part of Texas Instruments. It provides a fixed output voltage of 1.25 V with a tolerance of 1%. The device operates within an ambient temperature range of -40°C to +85°C and is housed in an SOIC-8 package. It functions as a shunt precision reference, requiring a minimum operating current of 10 µA and supporting a maximum shunt current of 20 mA.

Feature Summary

Provides a stable 1.25 V reference voltage for precision applications
Designed for micropower operation with low quiescent current consumption
Operates reliably across extended industrial temperature ranges

Applications

Portable battery-powered instrumentation
Data acquisition systems
Microprocessor supervisory circuits

Procurement Notes

Verify the manufacturer designation carefully, as National Semiconductor assets were acquired by Texas Instruments. Ensure the specific suffix matches the required package and temperature grade. Confirm RoHS compliance status through official documentation before procurement.

Selection Notes

Select this component when a low-cost, fixed 1.25 V reference is required for shunt regulation. Consider the SOIC-8 package constraints and thermal characteristics. Evaluate if the 1% tolerance meets system accuracy requirements compared to higher precision alternatives.

Part Context

This device belongs to the LM285/LM385 family of micropower voltage references. These components are widely used in analog circuits where a stable reference voltage is critical. The LM285 series offers a cost-effective solution for general-purpose voltage referencing tasks.